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Finding the Fourth Proportional to 71,568.10, 107,352.15 and 22,320.10

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Solution

The fourth proportional to 71,568.10, 107,352.15 and 22,320.10 is: 33,480.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,568.10 : 107,352.15 = 22,320.10 : x
  2. Step 2: Convert to fraction form
    71,568.10/107,352.15 = 22,320.10/x
  3. Step 3: Cross multiply
    71,568.10x = 107,352.15 × 22,320.10
  4. Step 4: Simplify right side
    71,568.10x = 2,396,110,723.22
  5. Step 5: Solve for x
    x = 2,396,110,723.22/71,568.10
  6. Step 6: Final answer
    x = 33,480.15

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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.