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Finding the Fourth Proportional to 22,665.53, 31,282.90 and 14,483.90

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Solution

The fourth proportional to 22,665.53, 31,282.90 and 14,483.90 is: 19,990.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,665.53 : 31,282.90 = 14,483.90 : x
  2. Step 2: Convert to fraction form
    22,665.53/31,282.90 = 14,483.90/x
  3. Step 3: Cross multiply
    22,665.53x = 31,282.90 × 14,483.90
  4. Step 4: Simplify right side
    22,665.53x = 453,098,202.69
  5. Step 5: Solve for x
    x = 453,098,202.69/22,665.53
  6. Step 6: Final answer
    x = 19,990.63

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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.