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Finding the Fourth Proportional to 56,765.52, 85,060.68 and 35,945.28

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Solution

The fourth proportional to 56,765.52, 85,060.68 and 35,945.28 is: 53,862.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,765.52 : 85,060.68 = 35,945.28 : x
  2. Step 2: Convert to fraction form
    56,765.52/85,060.68 = 35,945.28/x
  3. Step 3: Cross multiply
    56,765.52x = 85,060.68 × 35,945.28
  4. Step 4: Simplify right side
    56,765.52x = 3,057,529,959.59
  5. Step 5: Solve for x
    x = 3,057,529,959.59/56,765.52
  6. Step 6: Final answer
    x = 53,862.45

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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.