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Finding the Fourth Proportional to 71,473.32, 107,195.40 and 27,084.78

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Solution

The fourth proportional to 71,473.32, 107,195.40 and 27,084.78 is: 40,621.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,473.32 : 107,195.40 = 27,084.78 : x
  2. Step 2: Convert to fraction form
    71,473.32/107,195.40 = 27,084.78/x
  3. Step 3: Cross multiply
    71,473.32x = 107,195.40 × 27,084.78
  4. Step 4: Simplify right side
    71,473.32x = 2,903,363,826.01
  5. Step 5: Solve for x
    x = 2,903,363,826.01/71,473.32
  6. Step 6: Final answer
    x = 40,621.64

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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.