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Finding the Fourth Proportional to 22,990.47, 34,498.79 and 8,948.68

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Solution

The fourth proportional to 22,990.47, 34,498.79 and 8,948.68 is: 13,428.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,990.47 : 34,498.79 = 8,948.68 : x
  2. Step 2: Convert to fraction form
    22,990.47/34,498.79 = 8,948.68/x
  3. Step 3: Cross multiply
    22,990.47x = 34,498.79 × 8,948.68
  4. Step 4: Simplify right side
    22,990.47x = 308,718,585.00
  5. Step 5: Solve for x
    x = 308,718,585.00/22,990.47
  6. Step 6: Final answer
    x = 13,428.11

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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.