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Finding the Fourth Proportional to 63,657.72, 87,814.71 and 43,240.83

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Solution

The fourth proportional to 63,657.72, 87,814.71 and 43,240.83 is: 59,649.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,657.72 : 87,814.71 = 43,240.83 : x
  2. Step 2: Convert to fraction form
    63,657.72/87,814.71 = 43,240.83/x
  3. Step 3: Cross multiply
    63,657.72x = 87,814.71 × 43,240.83
  4. Step 4: Simplify right side
    63,657.72x = 3,797,180,730.41
  5. Step 5: Solve for x
    x = 3,797,180,730.41/63,657.72
  6. Step 6: Final answer
    x = 59,649.97

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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.