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Finding the Fourth Proportional to 57,062.70, 85,606.20 and 17,623.80

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Solution

The fourth proportional to 57,062.70, 85,606.20 and 17,623.80 is: 26,439.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,062.70 : 85,606.20 = 17,623.80 : x
  2. Step 2: Convert to fraction form
    57,062.70/85,606.20 = 17,623.80/x
  3. Step 3: Cross multiply
    57,062.70x = 85,606.20 × 17,623.80
  4. Step 4: Simplify right side
    57,062.70x = 1,508,706,547.56
  5. Step 5: Solve for x
    x = 1,508,706,547.56/57,062.70
  6. Step 6: Final answer
    x = 26,439.45

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Why These Related Problems?

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