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Finding the Fourth Proportional to 12,362,709.10, 18,544,063.65 and 8,583,573.10

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Solution

The fourth proportional to 12,362,709.10, 18,544,063.65 and 8,583,573.10 is: 12,875,359.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,362,709.10 : 18,544,063.65 = 8,583,573.10 : x
  2. Step 2: Convert to fraction form
    12,362,709.10/18,544,063.65 = 8,583,573.10/x
  3. Step 3: Cross multiply
    12,362,709.10x = 18,544,063.65 × 8,583,573.10
  4. Step 4: Simplify right side
    12,362,709.10x = 159,174,325,910,827.78
  5. Step 5: Solve for x
    x = 159,174,325,910,827.78/12,362,709.10
  6. Step 6: Final answer
    x = 12,875,359.65

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.