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Finding the Fourth Proportional to 8,923.74, 12,313.92 and 5,337.97

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Solution

The fourth proportional to 8,923.74, 12,313.92 and 5,337.97 is: 7,365.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,923.74 : 12,313.92 = 5,337.97 : x
  2. Step 2: Convert to fraction form
    8,923.74/12,313.92 = 5,337.97/x
  3. Step 3: Cross multiply
    8,923.74x = 12,313.92 × 5,337.97
  4. Step 4: Simplify right side
    8,923.74x = 65,731,335.54
  5. Step 5: Solve for x
    x = 65,731,335.54/8,923.74
  6. Step 6: Final answer
    x = 7,365.90

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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.