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Finding the Fourth Proportional to 71,367.20, 107,051.70 and 33,931.16

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Solution

The fourth proportional to 71,367.20, 107,051.70 and 33,931.16 is: 50,897.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,367.20 : 107,051.70 = 33,931.16 : x
  2. Step 2: Convert to fraction form
    71,367.20/107,051.70 = 33,931.16/x
  3. Step 3: Cross multiply
    71,367.20x = 107,051.70 × 33,931.16
  4. Step 4: Simplify right side
    71,367.20x = 3,632,388,360.97
  5. Step 5: Solve for x
    x = 3,632,388,360.97/71,367.20
  6. Step 6: Final answer
    x = 50,897.17

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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.