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Finding the Fourth Proportional to 86,562.92, 129,851.82 and 30,398.21

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Solution

The fourth proportional to 86,562.92, 129,851.82 and 30,398.21 is: 45,599.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,562.92 : 129,851.82 = 30,398.21 : x
  2. Step 2: Convert to fraction form
    86,562.92/129,851.82 = 30,398.21/x
  3. Step 3: Cross multiply
    86,562.92x = 129,851.82 × 30,398.21
  4. Step 4: Simplify right side
    86,562.92x = 3,947,262,243.98
  5. Step 5: Solve for x
    x = 3,947,262,243.98/86,562.92
  6. Step 6: Final answer
    x = 45,599.92

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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.