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Finding the Fourth Proportional to 71,374.80, 107,062.20 and 22,120.40

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Solution

The fourth proportional to 71,374.80, 107,062.20 and 22,120.40 is: 33,180.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,374.80 : 107,062.20 = 22,120.40 : x
  2. Step 2: Convert to fraction form
    71,374.80/107,062.20 = 22,120.40/x
  3. Step 3: Cross multiply
    71,374.80x = 107,062.20 × 22,120.40
  4. Step 4: Simplify right side
    71,374.80x = 2,368,258,688.88
  5. Step 5: Solve for x
    x = 2,368,258,688.88/71,374.80
  6. Step 6: Final answer
    x = 33,180.60

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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.