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Finding the Fourth Proportional to 72,963.86, 109,439.95 and 32,449.92

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Solution

The fourth proportional to 72,963.86, 109,439.95 and 32,449.92 is: 48,672.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,963.86 : 109,439.95 = 32,449.92 : x
  2. Step 2: Convert to fraction form
    72,963.86/109,439.95 = 32,449.92/x
  3. Step 3: Cross multiply
    72,963.86x = 109,439.95 × 32,449.92
  4. Step 4: Simplify right side
    72,963.86x = 3,551,316,912.85
  5. Step 5: Solve for x
    x = 3,551,316,912.85/72,963.86
  6. Step 6: Final answer
    x = 48,672.27

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1.5x scale

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.