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Finding the Fourth Proportional to 22,260, 30,710.28 and 14,709.96

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Solution

The fourth proportional to 22,260, 30,710.28 and 14,709.96 is: 20,294.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,260 : 30,710.28 = 14,709.96 : x
  2. Step 2: Convert to fraction form
    22,260/30,710.28 = 14,709.96/x
  3. Step 3: Cross multiply
    22,260x = 30,710.28 × 14,709.96
  4. Step 4: Simplify right side
    22,260x = 451,746,990.39
  5. Step 5: Solve for x
    x = 451,746,990.39/22,260
  6. Step 6: Final answer
    x = 20,294.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.