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Finding the Fourth Proportional to 15,993.18, 22,044.15 and 10,686.06

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Solution

The fourth proportional to 15,993.18, 22,044.15 and 10,686.06 is: 14,729.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,993.18 : 22,044.15 = 10,686.06 : x
  2. Step 2: Convert to fraction form
    15,993.18/22,044.15 = 10,686.06/x
  3. Step 3: Cross multiply
    15,993.18x = 22,044.15 × 10,686.06
  4. Step 4: Simplify right side
    15,993.18x = 235,565,109.55
  5. Step 5: Solve for x
    x = 235,565,109.55/15,993.18
  6. Step 6: Final answer
    x = 14,729.10

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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.