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Finding the Fourth Proportional to 71,987.99, 107,991.09 and 24,612.17

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Solution

The fourth proportional to 71,987.99, 107,991.09 and 24,612.17 is: 36,921.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,987.99 : 107,991.09 = 24,612.17 : x
  2. Step 2: Convert to fraction form
    71,987.99/107,991.09 = 24,612.17/x
  3. Step 3: Cross multiply
    71,987.99x = 107,991.09 × 24,612.17
  4. Step 4: Simplify right side
    71,987.99x = 2,657,894,525.61
  5. Step 5: Solve for x
    x = 2,657,894,525.61/71,987.99
  6. Step 6: Final answer
    x = 36,921.36

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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.