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Finding the Fourth Proportional to 61,303.92, 91,961.01 and 25,775.43

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Solution

The fourth proportional to 61,303.92, 91,961.01 and 25,775.43 is: 38,665.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,303.92 : 91,961.01 = 25,775.43 : x
  2. Step 2: Convert to fraction form
    61,303.92/91,961.01 = 25,775.43/x
  3. Step 3: Cross multiply
    61,303.92x = 91,961.01 × 25,775.43
  4. Step 4: Simplify right side
    61,303.92x = 2,370,334,575.98
  5. Step 5: Solve for x
    x = 2,370,334,575.98/61,303.92
  6. Step 6: Final answer
    x = 38,665.30

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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.