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Finding the Fourth Proportional to 48,373.60, 72,560.88 and 31,838.56

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Solution

The fourth proportional to 48,373.60, 72,560.88 and 31,838.56 is: 47,758.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,373.60 : 72,560.88 = 31,838.56 : x
  2. Step 2: Convert to fraction form
    48,373.60/72,560.88 = 31,838.56/x
  3. Step 3: Cross multiply
    48,373.60x = 72,560.88 × 31,838.56
  4. Step 4: Simplify right side
    48,373.60x = 2,310,233,931.53
  5. Step 5: Solve for x
    x = 2,310,233,931.53/48,373.60
  6. Step 6: Final answer
    x = 47,758.16

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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.