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Finding the Fourth Proportional to 19,711.30, 29,528.65 and 17,502.43

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Solution

The fourth proportional to 19,711.30, 29,528.65 and 17,502.43 is: 26,219.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,711.30 : 29,528.65 = 17,502.43 : x
  2. Step 2: Convert to fraction form
    19,711.30/29,528.65 = 17,502.43/x
  3. Step 3: Cross multiply
    19,711.30x = 29,528.65 × 17,502.43
  4. Step 4: Simplify right side
    19,711.30x = 516,823,133.04
  5. Step 5: Solve for x
    x = 516,823,133.04/19,711.30
  6. Step 6: Final answer
    x = 26,219.64

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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.