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Finding the Fourth Proportional to 13,220.59, 18,244.42 and 7,252.28

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Solution

The fourth proportional to 13,220.59, 18,244.42 and 7,252.28 is: 10,008.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,220.59 : 18,244.42 = 7,252.28 : x
  2. Step 2: Convert to fraction form
    13,220.59/18,244.42 = 7,252.28/x
  3. Step 3: Cross multiply
    13,220.59x = 18,244.42 × 7,252.28
  4. Step 4: Simplify right side
    13,220.59x = 132,313,642.28
  5. Step 5: Solve for x
    x = 132,313,642.28/13,220.59
  6. Step 6: Final answer
    x = 10,008.15

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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.