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Finding the Fourth Proportional to 56,687.58, 84,978.90 and 25,080.89

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Solution

The fourth proportional to 56,687.58, 84,978.90 and 25,080.89 is: 37,598.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,687.58 : 84,978.90 = 25,080.89 : x
  2. Step 2: Convert to fraction form
    56,687.58/84,978.90 = 25,080.89/x
  3. Step 3: Cross multiply
    56,687.58x = 84,978.90 × 25,080.89
  4. Step 4: Simplify right side
    56,687.58x = 2,131,346,018.33
  5. Step 5: Solve for x
    x = 2,131,346,018.33/56,687.58
  6. Step 6: Final answer
    x = 37,598.11

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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.