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Finding the Fourth Proportional to 7,842.96, 10,823.49 and 4,306.23

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Solution

The fourth proportional to 7,842.96, 10,823.49 and 4,306.23 is: 5,942.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,842.96 : 10,823.49 = 4,306.23 : x
  2. Step 2: Convert to fraction form
    7,842.96/10,823.49 = 4,306.23/x
  3. Step 3: Cross multiply
    7,842.96x = 10,823.49 × 4,306.23
  4. Step 4: Simplify right side
    7,842.96x = 46,608,437.34
  5. Step 5: Solve for x
    x = 46,608,437.34/7,842.96
  6. Step 6: Final answer
    x = 5,942.71

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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.