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Finding the Fourth Proportional to 13,060.40, 18,024.46 and 7,396.13

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Solution

The fourth proportional to 13,060.40, 18,024.46 and 7,396.13 is: 10,207.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,060.40 : 18,024.46 = 7,396.13 : x
  2. Step 2: Convert to fraction form
    13,060.40/18,024.46 = 7,396.13/x
  3. Step 3: Cross multiply
    13,060.40x = 18,024.46 × 7,396.13
  4. Step 4: Simplify right side
    13,060.40x = 133,311,275.91
  5. Step 5: Solve for x
    x = 133,311,275.91/13,060.40
  6. Step 6: Final answer
    x = 10,207.29

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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.