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Finding the Fourth Proportional to 12,042.15, 18,063.94 and 4,646.65

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Solution

The fourth proportional to 12,042.15, 18,063.94 and 4,646.65 is: 6,970.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,042.15 : 18,063.94 = 4,646.65 : x
  2. Step 2: Convert to fraction form
    12,042.15/18,063.94 = 4,646.65/x
  3. Step 3: Cross multiply
    12,042.15x = 18,063.94 × 4,646.65
  4. Step 4: Simplify right side
    12,042.15x = 83,936,750.02
  5. Step 5: Solve for x
    x = 83,936,750.02/12,042.15
  6. Step 6: Final answer
    x = 6,970.25

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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.