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Finding the Fourth Proportional to 25,608.99, 38,419.17 and 7,842.13

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Solution

The fourth proportional to 25,608.99, 38,419.17 and 7,842.13 is: 11,764.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,608.99 : 38,419.17 = 7,842.13 : x
  2. Step 2: Convert to fraction form
    25,608.99/38,419.17 = 7,842.13/x
  3. Step 3: Cross multiply
    25,608.99x = 38,419.17 × 7,842.13
  4. Step 4: Simplify right side
    25,608.99x = 301,288,125.63
  5. Step 5: Solve for x
    x = 301,288,125.63/25,608.99
  6. Step 6: Final answer
    x = 11,764.94

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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.