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Finding the Fourth Proportional to 48,752.40, 73,123.20 and 13,695.60

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Solution

The fourth proportional to 48,752.40, 73,123.20 and 13,695.60 is: 20,541.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,752.40 : 73,123.20 = 13,695.60 : x
  2. Step 2: Convert to fraction form
    48,752.40/73,123.20 = 13,695.60/x
  3. Step 3: Cross multiply
    48,752.40x = 73,123.20 × 13,695.60
  4. Step 4: Simplify right side
    48,752.40x = 1,001,466,097.92
  5. Step 5: Solve for x
    x = 1,001,466,097.92/48,752.40
  6. Step 6: Final answer
    x = 20,541.88

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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.