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Finding the Fourth Proportional to 71,384.70, 107,036.55 and 27,012.90

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Solution

The fourth proportional to 71,384.70, 107,036.55 and 27,012.90 is: 40,504.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,384.70 : 107,036.55 = 27,012.90 : x
  2. Step 2: Convert to fraction form
    71,384.70/107,036.55 = 27,012.90/x
  3. Step 3: Cross multiply
    71,384.70x = 107,036.55 × 27,012.90
  4. Step 4: Simplify right side
    71,384.70x = 2,891,367,621.50
  5. Step 5: Solve for x
    x = 2,891,367,621.50/71,384.70
  6. Step 6: Final answer
    x = 40,504.02

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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.