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Finding the Fourth Proportional to 71,937.12, 107,926.74 and 36,901.20

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Solution

The fourth proportional to 71,937.12, 107,926.74 and 36,901.20 is: 55,362.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,937.12 : 107,926.74 = 36,901.20 : x
  2. Step 2: Convert to fraction form
    71,937.12/107,926.74 = 36,901.20/x
  3. Step 3: Cross multiply
    71,937.12x = 107,926.74 × 36,901.20
  4. Step 4: Simplify right side
    71,937.12x = 3,982,626,218.09
  5. Step 5: Solve for x
    x = 3,982,626,218.09/71,937.12
  6. Step 6: Final answer
    x = 55,362.60

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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.