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Finding the Fourth Proportional to 63,559.38, 87,710.40 and 34,878.90

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Solution

The fourth proportional to 63,559.38, 87,710.40 and 34,878.90 is: 48,132.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,559.38 : 87,710.40 = 34,878.90 : x
  2. Step 2: Convert to fraction form
    63,559.38/87,710.40 = 34,878.90/x
  3. Step 3: Cross multiply
    63,559.38x = 87,710.40 × 34,878.90
  4. Step 4: Simplify right side
    63,559.38x = 3,059,242,270.56
  5. Step 5: Solve for x
    x = 3,059,242,270.56/63,559.38
  6. Step 6: Final answer
    x = 48,132.03

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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.