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Finding the Fourth Proportional to 62,772.78, 86,626.98 and 34,479.12

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Solution

The fourth proportional to 62,772.78, 86,626.98 and 34,479.12 is: 47,581.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,772.78 : 86,626.98 = 34,479.12 : x
  2. Step 2: Convert to fraction form
    62,772.78/86,626.98 = 34,479.12/x
  3. Step 3: Cross multiply
    62,772.78x = 86,626.98 × 34,479.12
  4. Step 4: Simplify right side
    62,772.78x = 2,986,822,038.66
  5. Step 5: Solve for x
    x = 2,986,822,038.66/62,772.78
  6. Step 6: Final answer
    x = 47,581.48

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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.