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Finding the Fourth Proportional to 15,891.71, 23,839.20 and 4,204.89

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Solution

The fourth proportional to 15,891.71, 23,839.20 and 4,204.89 is: 6,307.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,891.71 : 23,839.20 = 4,204.89 : x
  2. Step 2: Convert to fraction form
    15,891.71/23,839.20 = 4,204.89/x
  3. Step 3: Cross multiply
    15,891.71x = 23,839.20 × 4,204.89
  4. Step 4: Simplify right side
    15,891.71x = 100,241,213.69
  5. Step 5: Solve for x
    x = 100,241,213.69/15,891.71
  6. Step 6: Final answer
    x = 6,307.77

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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.