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Finding the Fourth Proportional to 63,391.55, 87,479.60 and 34,710.93

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Solution

The fourth proportional to 63,391.55, 87,479.60 and 34,710.93 is: 47,900.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,391.55 : 87,479.60 = 34,710.93 : x
  2. Step 2: Convert to fraction form
    63,391.55/87,479.60 = 34,710.93/x
  3. Step 3: Cross multiply
    63,391.55x = 87,479.60 × 34,710.93
  4. Step 4: Simplify right side
    63,391.55x = 3,036,498,098.47
  5. Step 5: Solve for x
    x = 3,036,498,098.47/63,391.55
  6. Step 6: Final answer
    x = 47,900.68

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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.