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Finding the Fourth Proportional to 25,641.30, 38,431.80 and 11,584.92

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Solution

The fourth proportional to 25,641.30, 38,431.80 and 11,584.92 is: 17,363.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,641.30 : 38,431.80 = 11,584.92 : x
  2. Step 2: Convert to fraction form
    25,641.30/38,431.80 = 11,584.92/x
  3. Step 3: Cross multiply
    25,641.30x = 38,431.80 × 11,584.92
  4. Step 4: Simplify right side
    25,641.30x = 445,229,328.46
  5. Step 5: Solve for x
    x = 445,229,328.46/25,641.30
  6. Step 6: Final answer
    x = 17,363.76

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1.5x scale

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.