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Finding the Fourth Proportional to 56,699.60, 85,062.07 and 17,259.78

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Solution

The fourth proportional to 56,699.60, 85,062.07 and 17,259.78 is: 25,893.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,699.60 : 85,062.07 = 17,259.78 : x
  2. Step 2: Convert to fraction form
    56,699.60/85,062.07 = 17,259.78/x
  3. Step 3: Cross multiply
    56,699.60x = 85,062.07 × 17,259.78
  4. Step 4: Simplify right side
    56,699.60x = 1,468,153,003.65
  5. Step 5: Solve for x
    x = 1,468,153,003.65/56,699.60
  6. Step 6: Final answer
    x = 25,893.54

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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.