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Finding the Fourth Proportional to 67,687.80, 93,409.74 and 37,472.28

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Solution

The fourth proportional to 67,687.80, 93,409.74 and 37,472.28 is: 51,712.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,687.80 : 93,409.74 = 37,472.28 : x
  2. Step 2: Convert to fraction form
    67,687.80/93,409.74 = 37,472.28/x
  3. Step 3: Cross multiply
    67,687.80x = 93,409.74 × 37,472.28
  4. Step 4: Simplify right side
    67,687.80x = 3,500,275,932.01
  5. Step 5: Solve for x
    x = 3,500,275,932.01/67,687.80
  6. Step 6: Final answer
    x = 51,712.07

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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.