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Finding the Fourth Proportional to 71,280.75, 106,921.13 and 22,032.75

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Solution

The fourth proportional to 71,280.75, 106,921.13 and 22,032.75 is: 33,049.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,280.75 : 106,921.13 = 22,032.75 : x
  2. Step 2: Convert to fraction form
    71,280.75/106,921.13 = 22,032.75/x
  3. Step 3: Cross multiply
    71,280.75x = 106,921.13 × 22,032.75
  4. Step 4: Simplify right side
    71,280.75x = 2,355,766,416.84
  5. Step 5: Solve for x
    x = 2,355,766,416.84/71,280.75
  6. Step 6: Final answer
    x = 33,049.13

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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.