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Finding the Fourth Proportional to 57,079.26, 85,619.47 and 25,490.93

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Solution

The fourth proportional to 57,079.26, 85,619.47 and 25,490.93 is: 38,236.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,079.26 : 85,619.47 = 25,490.93 : x
  2. Step 2: Convert to fraction form
    57,079.26/85,619.47 = 25,490.93/x
  3. Step 3: Cross multiply
    57,079.26x = 85,619.47 × 25,490.93
  4. Step 4: Simplify right side
    57,079.26x = 2,182,519,916.41
  5. Step 5: Solve for x
    x = 2,182,519,916.41/57,079.26
  6. Step 6: Final answer
    x = 38,236.65

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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.