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Finding the Fourth Proportional to 71,043.40, 106,424.70 and 36,008.20

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Solution

The fourth proportional to 71,043.40, 106,424.70 and 36,008.20 is: 53,941.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,043.40 : 106,424.70 = 36,008.20 : x
  2. Step 2: Convert to fraction form
    71,043.40/106,424.70 = 36,008.20/x
  3. Step 3: Cross multiply
    71,043.40x = 106,424.70 × 36,008.20
  4. Step 4: Simplify right side
    71,043.40x = 3,832,161,882.54
  5. Step 5: Solve for x
    x = 3,832,161,882.54/71,043.40
  6. Step 6: Final answer
    x = 53,941.14

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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.