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Finding the Fourth Proportional to 60,472.68, 83,489.58 and 38,970

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Solution

The fourth proportional to 60,472.68, 83,489.58 and 38,970 is: 53,802.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,472.68 : 83,489.58 = 38,970 : x
  2. Step 2: Convert to fraction form
    60,472.68/83,489.58 = 38,970/x
  3. Step 3: Cross multiply
    60,472.68x = 83,489.58 × 38,970
  4. Step 4: Simplify right side
    60,472.68x = 3,253,588,932.60
  5. Step 5: Solve for x
    x = 3,253,588,932.60/60,472.68
  6. Step 6: Final answer
    x = 53,802.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.