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Finding the Fourth Proportional to 22,153.65, 30,569.18 and 12,592.28

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Solution

The fourth proportional to 22,153.65, 30,569.18 and 12,592.28 is: 17,375.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,153.65 : 30,569.18 = 12,592.28 : x
  2. Step 2: Convert to fraction form
    22,153.65/30,569.18 = 12,592.28/x
  3. Step 3: Cross multiply
    22,153.65x = 30,569.18 × 12,592.28
  4. Step 4: Simplify right side
    22,153.65x = 384,935,458.12
  5. Step 5: Solve for x
    x = 384,935,458.12/22,153.65
  6. Step 6: Final answer
    x = 17,375.71

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1.5x scale

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.