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Finding the Fourth Proportional to 86,351.52, 129,339.80 and 41,884.82

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Solution

The fourth proportional to 86,351.52, 129,339.80 and 41,884.82 is: 62,736.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,351.52 : 129,339.80 = 41,884.82 : x
  2. Step 2: Convert to fraction form
    86,351.52/129,339.80 = 41,884.82/x
  3. Step 3: Cross multiply
    86,351.52x = 129,339.80 × 41,884.82
  4. Step 4: Simplify right side
    86,351.52x = 5,417,373,385.71
  5. Step 5: Solve for x
    x = 5,417,373,385.71/86,351.52
  6. Step 6: Final answer
    x = 62,736.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.