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Finding the Fourth Proportional to 63,737.28, 87,956.28 and 35,442.72

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Solution

The fourth proportional to 63,737.28, 87,956.28 and 35,442.72 is: 48,910.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,737.28 : 87,956.28 = 35,442.72 : x
  2. Step 2: Convert to fraction form
    63,737.28/87,956.28 = 35,442.72/x
  3. Step 3: Cross multiply
    63,737.28x = 87,956.28 × 35,442.72
  4. Step 4: Simplify right side
    63,737.28x = 3,117,409,804.28
  5. Step 5: Solve for x
    x = 3,117,409,804.28/63,737.28
  6. Step 6: Final answer
    x = 48,910.30

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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.