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Finding the Fourth Proportional to 7,843.56, 10,824.12 and 4,306.95

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Solution

The fourth proportional to 7,843.56, 10,824.12 and 4,306.95 is: 5,943.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,843.56 : 10,824.12 = 4,306.95 : x
  2. Step 2: Convert to fraction form
    7,843.56/10,824.12 = 4,306.95/x
  3. Step 3: Cross multiply
    7,843.56x = 10,824.12 × 4,306.95
  4. Step 4: Simplify right side
    7,843.56x = 46,618,943.63
  5. Step 5: Solve for x
    x = 46,618,943.63/7,843.56
  6. Step 6: Final answer
    x = 5,943.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.