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Finding the Fourth Proportional to 57,008.40, 85,504.90 and 14,891.43

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Solution

The fourth proportional to 57,008.40, 85,504.90 and 14,891.43 is: 22,335.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,008.40 : 85,504.90 = 14,891.43 : x
  2. Step 2: Convert to fraction form
    57,008.40/85,504.90 = 14,891.43/x
  3. Step 3: Cross multiply
    57,008.40x = 85,504.90 × 14,891.43
  4. Step 4: Simplify right side
    57,008.40x = 1,273,290,233.01
  5. Step 5: Solve for x
    x = 1,273,290,233.01/57,008.40
  6. Step 6: Final answer
    x = 22,335.13

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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.