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Finding the Fourth Proportional to 23,159.03, 31,959.49 and 12,548.66

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Solution

The fourth proportional to 23,159.03, 31,959.49 and 12,548.66 is: 17,317.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,159.03 : 31,959.49 = 12,548.66 : x
  2. Step 2: Convert to fraction form
    23,159.03/31,959.49 = 12,548.66/x
  3. Step 3: Cross multiply
    23,159.03x = 31,959.49 × 12,548.66
  4. Step 4: Simplify right side
    23,159.03x = 401,048,773.78
  5. Step 5: Solve for x
    x = 401,048,773.78/23,159.03
  6. Step 6: Final answer
    x = 17,317.17

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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.