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Finding the Fourth Proportional to 31,170.29, 43,015.15 and 17,023.13

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Solution

The fourth proportional to 31,170.29, 43,015.15 and 17,023.13 is: 23,492.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,170.29 : 43,015.15 = 17,023.13 : x
  2. Step 2: Convert to fraction form
    31,170.29/43,015.15 = 17,023.13/x
  3. Step 3: Cross multiply
    31,170.29x = 43,015.15 × 17,023.13
  4. Step 4: Simplify right side
    31,170.29x = 732,252,457.93
  5. Step 5: Solve for x
    x = 732,252,457.93/31,170.29
  6. Step 6: Final answer
    x = 23,492.00

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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.