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Finding the Fourth Proportional to 63,311.64, 87,366.51 and 34,625.61

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Solution

The fourth proportional to 63,311.64, 87,366.51 and 34,625.61 is: 47,781.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,311.64 : 87,366.51 = 34,625.61 : x
  2. Step 2: Convert to fraction form
    63,311.64/87,366.51 = 34,625.61/x
  3. Step 3: Cross multiply
    63,311.64x = 87,366.51 × 34,625.61
  4. Step 4: Simplify right side
    63,311.64x = 3,025,118,702.32
  5. Step 5: Solve for x
    x = 3,025,118,702.32/63,311.64
  6. Step 6: Final answer
    x = 47,781.40

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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.