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Finding the Fourth Proportional to 9,808.92, 13,542.36 and 6,748.02

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Solution

The fourth proportional to 9,808.92, 13,542.36 and 6,748.02 is: 9,316.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,808.92 : 13,542.36 = 6,748.02 : x
  2. Step 2: Convert to fraction form
    9,808.92/13,542.36 = 6,748.02/x
  3. Step 3: Cross multiply
    9,808.92x = 13,542.36 × 6,748.02
  4. Step 4: Simplify right side
    9,808.92x = 91,384,116.13
  5. Step 5: Solve for x
    x = 91,384,116.13/9,808.92
  6. Step 6: Final answer
    x = 9,316.43

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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.