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Finding the Fourth Proportional to 25,871.74, 38,805.78 and 9,229.89

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Solution

The fourth proportional to 25,871.74, 38,805.78 and 9,229.89 is: 13,844.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,871.74 : 38,805.78 = 9,229.89 : x
  2. Step 2: Convert to fraction form
    25,871.74/38,805.78 = 9,229.89/x
  3. Step 3: Cross multiply
    25,871.74x = 38,805.78 × 9,229.89
  4. Step 4: Simplify right side
    25,871.74x = 358,173,080.76
  5. Step 5: Solve for x
    x = 358,173,080.76/25,871.74
  6. Step 6: Final answer
    x = 13,844.18

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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.