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Finding the Fourth Proportional to 69,764.58, 104,674.82 and 25,394.40

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Solution

The fourth proportional to 69,764.58, 104,674.82 and 25,394.40 is: 38,101.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,764.58 : 104,674.82 = 25,394.40 : x
  2. Step 2: Convert to fraction form
    69,764.58/104,674.82 = 25,394.40/x
  3. Step 3: Cross multiply
    69,764.58x = 104,674.82 × 25,394.40
  4. Step 4: Simplify right side
    69,764.58x = 2,658,154,122.04
  5. Step 5: Solve for x
    x = 2,658,154,122.04/69,764.58
  6. Step 6: Final answer
    x = 38,101.77

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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.