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Finding the Fourth Proportional to 14,601.63, 21,905.15 and 4,740.15

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Solution

The fourth proportional to 14,601.63, 21,905.15 and 4,740.15 is: 7,111.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,601.63 : 21,905.15 = 4,740.15 : x
  2. Step 2: Convert to fraction form
    14,601.63/21,905.15 = 4,740.15/x
  3. Step 3: Cross multiply
    14,601.63x = 21,905.15 × 4,740.15
  4. Step 4: Simplify right side
    14,601.63x = 103,833,673.07
  5. Step 5: Solve for x
    x = 103,833,673.07/14,601.63
  6. Step 6: Final answer
    x = 7,111.10

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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.