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Finding the Fourth Proportional to 63,558.55, 87,710.56 and 34,878.69

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Solution

The fourth proportional to 63,558.55, 87,710.56 and 34,878.69 is: 48,132.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,558.55 : 87,710.56 = 34,878.69 : x
  2. Step 2: Convert to fraction form
    63,558.55/87,710.56 = 34,878.69/x
  3. Step 3: Cross multiply
    63,558.55x = 87,710.56 × 34,878.69
  4. Step 4: Simplify right side
    63,558.55x = 3,059,229,431.97
  5. Step 5: Solve for x
    x = 3,059,229,431.97/63,558.55
  6. Step 6: Final answer
    x = 48,132.46

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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.