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Finding the Fourth Proportional to 57,877.85, 79,887.03 and 34,020.52

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Solution

The fourth proportional to 57,877.85, 79,887.03 and 34,020.52 is: 46,957.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,877.85 : 79,887.03 = 34,020.52 : x
  2. Step 2: Convert to fraction form
    57,877.85/79,887.03 = 34,020.52/x
  3. Step 3: Cross multiply
    57,877.85x = 79,887.03 × 34,020.52
  4. Step 4: Simplify right side
    57,877.85x = 2,717,798,102.14
  5. Step 5: Solve for x
    x = 2,717,798,102.14/57,877.85
  6. Step 6: Final answer
    x = 46,957.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.