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Finding the Fourth Proportional to 22,488.26, 31,032.96 and 12,416.48

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Solution

The fourth proportional to 22,488.26, 31,032.96 and 12,416.48 is: 17,134.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,488.26 : 31,032.96 = 12,416.48 : x
  2. Step 2: Convert to fraction form
    22,488.26/31,032.96 = 12,416.48/x
  3. Step 3: Cross multiply
    22,488.26x = 31,032.96 × 12,416.48
  4. Step 4: Simplify right side
    22,488.26x = 385,320,065.10
  5. Step 5: Solve for x
    x = 385,320,065.10/22,488.26
  6. Step 6: Final answer
    x = 17,134.28

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