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Finding the Fourth Proportional to 22,978.28, 34,418.99 and 10,508.80

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Solution

The fourth proportional to 22,978.28, 34,418.99 and 10,508.80 is: 15,741.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,978.28 : 34,418.99 = 10,508.80 : x
  2. Step 2: Convert to fraction form
    22,978.28/34,418.99 = 10,508.80/x
  3. Step 3: Cross multiply
    22,978.28x = 34,418.99 × 10,508.80
  4. Step 4: Simplify right side
    22,978.28x = 361,702,282.11
  5. Step 5: Solve for x
    x = 361,702,282.11/22,978.28
  6. Step 6: Final answer
    x = 15,741.05

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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.