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Finding the Fourth Proportional to 62,861.45, 86,747.63 and 34,567.20

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Solution

The fourth proportional to 62,861.45, 86,747.63 and 34,567.20 is: 47,702.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,861.45 : 86,747.63 = 34,567.20 : x
  2. Step 2: Convert to fraction form
    62,861.45/86,747.63 = 34,567.20/x
  3. Step 3: Cross multiply
    62,861.45x = 86,747.63 × 34,567.20
  4. Step 4: Simplify right side
    62,861.45x = 2,998,622,502.90
  5. Step 5: Solve for x
    x = 2,998,622,502.90/62,861.45
  6. Step 6: Final answer
    x = 47,702.09

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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.