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Finding the Fourth Proportional to 19,116.30, 26,402.88 and 17,434.74

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Solution

The fourth proportional to 19,116.30, 26,402.88 and 17,434.74 is: 24,080.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,116.30 : 26,402.88 = 17,434.74 : x
  2. Step 2: Convert to fraction form
    19,116.30/26,402.88 = 17,434.74/x
  3. Step 3: Cross multiply
    19,116.30x = 26,402.88 × 17,434.74
  4. Step 4: Simplify right side
    19,116.30x = 460,327,348.05
  5. Step 5: Solve for x
    x = 460,327,348.05/19,116.30
  6. Step 6: Final answer
    x = 24,080.36

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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.