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Finding the Fourth Proportional to 63,390.50, 87,478.90 and 35,098.02

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Solution

The fourth proportional to 63,390.50, 87,478.90 and 35,098.02 is: 48,435.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,390.50 : 87,478.90 = 35,098.02 : x
  2. Step 2: Convert to fraction form
    63,390.50/87,478.90 = 35,098.02/x
  3. Step 3: Cross multiply
    63,390.50x = 87,478.90 × 35,098.02
  4. Step 4: Simplify right side
    63,390.50x = 3,070,336,181.78
  5. Step 5: Solve for x
    x = 3,070,336,181.78/63,390.50
  6. Step 6: Final answer
    x = 48,435.27

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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.