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Finding the Fourth Proportional to 63,099.45, 87,078.87 and 34,419.59

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Solution

The fourth proportional to 63,099.45, 87,078.87 and 34,419.59 is: 47,499.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,099.45 : 87,078.87 = 34,419.59 : x
  2. Step 2: Convert to fraction form
    63,099.45/87,078.87 = 34,419.59/x
  3. Step 3: Cross multiply
    63,099.45x = 87,078.87 × 34,419.59
  4. Step 4: Simplify right side
    63,099.45x = 2,997,218,567.67
  5. Step 5: Solve for x
    x = 2,997,218,567.67/63,099.45
  6. Step 6: Final answer
    x = 47,499.92

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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.