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Finding the Fourth Proportional to 60,472.17, 90,664.91 and 28,433.31

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Solution

The fourth proportional to 60,472.17, 90,664.91 and 28,433.31 is: 42,629.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,472.17 : 90,664.91 = 28,433.31 : x
  2. Step 2: Convert to fraction form
    60,472.17/90,664.91 = 28,433.31/x
  3. Step 3: Cross multiply
    60,472.17x = 90,664.91 × 28,433.31
  4. Step 4: Simplify right side
    60,472.17x = 2,577,903,349.99
  5. Step 5: Solve for x
    x = 2,577,903,349.99/60,472.17
  6. Step 6: Final answer
    x = 42,629.58

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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.