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Finding the Fourth Proportional to 13,306.62, 19,959.80 and 5,098.62

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Solution

The fourth proportional to 13,306.62, 19,959.80 and 5,098.62 is: 7,647.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,306.62 : 19,959.80 = 5,098.62 : x
  2. Step 2: Convert to fraction form
    13,306.62/19,959.80 = 5,098.62/x
  3. Step 3: Cross multiply
    13,306.62x = 19,959.80 × 5,098.62
  4. Step 4: Simplify right side
    13,306.62x = 101,767,435.48
  5. Step 5: Solve for x
    x = 101,767,435.48/13,306.62
  6. Step 6: Final answer
    x = 7,647.88

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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.