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Finding the Fourth Proportional to 83,990.66, 126,008.95 and 24,826.28

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Solution

The fourth proportional to 83,990.66, 126,008.95 and 24,826.28 is: 37,246.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,990.66 : 126,008.95 = 24,826.28 : x
  2. Step 2: Convert to fraction form
    83,990.66/126,008.95 = 24,826.28/x
  3. Step 3: Cross multiply
    83,990.66x = 126,008.95 × 24,826.28
  4. Step 4: Simplify right side
    83,990.66x = 3,128,333,728.16
  5. Step 5: Solve for x
    x = 3,128,333,728.16/83,990.66
  6. Step 6: Final answer
    x = 37,246.21

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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.