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Finding the Fourth Proportional to 61,125.62, 91,665.41 and 25,589.40

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Solution

The fourth proportional to 61,125.62, 91,665.41 and 25,589.40 is: 38,374.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,125.62 : 91,665.41 = 25,589.40 : x
  2. Step 2: Convert to fraction form
    61,125.62/91,665.41 = 25,589.40/x
  3. Step 3: Cross multiply
    61,125.62x = 91,665.41 × 25,589.40
  4. Step 4: Simplify right side
    61,125.62x = 2,345,662,714.71
  5. Step 5: Solve for x
    x = 2,345,662,714.71/61,125.62
  6. Step 6: Final answer
    x = 38,374.46

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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.