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Finding the Fourth Proportional to 15,995.85, 23,959.15 and 11,603.63

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Solution

The fourth proportional to 15,995.85, 23,959.15 and 11,603.63 is: 17,380.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,995.85 : 23,959.15 = 11,603.63 : x
  2. Step 2: Convert to fraction form
    15,995.85/23,959.15 = 11,603.63/x
  3. Step 3: Cross multiply
    15,995.85x = 23,959.15 × 11,603.63
  4. Step 4: Simplify right side
    15,995.85x = 278,012,962.91
  5. Step 5: Solve for x
    x = 278,012,962.91/15,995.85
  6. Step 6: Final answer
    x = 17,380.32

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.