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Finding the Fourth Proportional to 9,998.64, 13,798.80 and 5,806.92

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Solution

The fourth proportional to 9,998.64, 13,798.80 and 5,806.92 is: 8,013.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,998.64 : 13,798.80 = 5,806.92 : x
  2. Step 2: Convert to fraction form
    9,998.64/13,798.80 = 5,806.92/x
  3. Step 3: Cross multiply
    9,998.64x = 13,798.80 × 5,806.92
  4. Step 4: Simplify right side
    9,998.64x = 80,128,527.70
  5. Step 5: Solve for x
    x = 80,128,527.70/9,998.64
  6. Step 6: Final answer
    x = 8,013.94

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Similar ratio
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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.