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Finding the Fourth Proportional to 69,644.90, 104,508.84 and 25,275.11

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Solution

The fourth proportional to 69,644.90, 104,508.84 and 25,275.11 is: 37,927.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,644.90 : 104,508.84 = 25,275.11 : x
  2. Step 2: Convert to fraction form
    69,644.90/104,508.84 = 25,275.11/x
  3. Step 3: Cross multiply
    69,644.90x = 104,508.84 × 25,275.11
  4. Step 4: Simplify right side
    69,644.90x = 2,641,471,904.43
  5. Step 5: Solve for x
    x = 2,641,471,904.43/69,644.90
  6. Step 6: Final answer
    x = 37,927.72

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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.