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Finding the Fourth Proportional to 63,728.88, 87,941.04 and 35,432.16

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Solution

The fourth proportional to 63,728.88, 87,941.04 and 35,432.16 is: 48,893.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,728.88 : 87,941.04 = 35,432.16 : x
  2. Step 2: Convert to fraction form
    63,728.88/87,941.04 = 35,432.16/x
  3. Step 3: Cross multiply
    63,728.88x = 87,941.04 × 35,432.16
  4. Step 4: Simplify right side
    63,728.88x = 3,115,940,999.85
  5. Step 5: Solve for x
    x = 3,115,940,999.85/63,728.88
  6. Step 6: Final answer
    x = 48,893.70

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1.5x scale

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.