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Finding the Fourth Proportional to 25,907.60, 38,861.39 and 11,659.43

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Solution

The fourth proportional to 25,907.60, 38,861.39 and 11,659.43 is: 17,489.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,907.60 : 38,861.39 = 11,659.43 : x
  2. Step 2: Convert to fraction form
    25,907.60/38,861.39 = 11,659.43/x
  3. Step 3: Cross multiply
    25,907.60x = 38,861.39 × 11,659.43
  4. Step 4: Simplify right side
    25,907.60x = 453,101,491.25
  5. Step 5: Solve for x
    x = 453,101,491.25/25,907.60
  6. Step 6: Final answer
    x = 17,489.13

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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.