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Finding the Fourth Proportional to 57,424.88, 86,130.47 and 15,308.12

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Solution

The fourth proportional to 57,424.88, 86,130.47 and 15,308.12 is: 22,960.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,424.88 : 86,130.47 = 15,308.12 : x
  2. Step 2: Convert to fraction form
    57,424.88/86,130.47 = 15,308.12/x
  3. Step 3: Cross multiply
    57,424.88x = 86,130.47 × 15,308.12
  4. Step 4: Simplify right side
    57,424.88x = 1,318,495,824.01
  5. Step 5: Solve for x
    x = 1,318,495,824.01/57,424.88
  6. Step 6: Final answer
    x = 22,960.36

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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.