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Finding the Fourth Proportional to 62,422.92, 86,143.74 and 34,128.60

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Solution

The fourth proportional to 62,422.92, 86,143.74 and 34,128.60 is: 47,097.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,422.92 : 86,143.74 = 34,128.60 : x
  2. Step 2: Convert to fraction form
    62,422.92/86,143.74 = 34,128.60/x
  3. Step 3: Cross multiply
    62,422.92x = 86,143.74 × 34,128.60
  4. Step 4: Simplify right side
    62,422.92x = 2,939,965,244.96
  5. Step 5: Solve for x
    x = 2,939,965,244.96/62,422.92
  6. Step 6: Final answer
    x = 47,097.53

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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.