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Finding the Fourth Proportional to 63,257.86, 87,225.21 and 51,736.90

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Solution

The fourth proportional to 63,257.86, 87,225.21 and 51,736.90 is: 71,339.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,257.86 : 87,225.21 = 51,736.90 : x
  2. Step 2: Convert to fraction form
    63,257.86/87,225.21 = 51,736.90/x
  3. Step 3: Cross multiply
    63,257.86x = 87,225.21 × 51,736.90
  4. Step 4: Simplify right side
    63,257.86x = 4,512,761,967.25
  5. Step 5: Solve for x
    x = 4,512,761,967.25/63,257.86
  6. Step 6: Final answer
    x = 71,339.15

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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.