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Finding the Fourth Proportional to 86,005.80, 129,014.78 and 22,825.40

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Solution

The fourth proportional to 86,005.80, 129,014.78 and 22,825.40 is: 34,239.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,005.80 : 129,014.78 = 22,825.40 : x
  2. Step 2: Convert to fraction form
    86,005.80/129,014.78 = 22,825.40/x
  3. Step 3: Cross multiply
    86,005.80x = 129,014.78 × 22,825.40
  4. Step 4: Simplify right side
    86,005.80x = 2,944,813,200.21
  5. Step 5: Solve for x
    x = 2,944,813,200.21/86,005.80
  6. Step 6: Final answer
    x = 34,239.70

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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.