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Finding the Fourth Proportional to 7,301.80, 10,952.70 and 6,645.70

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Solution

The fourth proportional to 7,301.80, 10,952.70 and 6,645.70 is: 9,968.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,301.80 : 10,952.70 = 6,645.70 : x
  2. Step 2: Convert to fraction form
    7,301.80/10,952.70 = 6,645.70/x
  3. Step 3: Cross multiply
    7,301.80x = 10,952.70 × 6,645.70
  4. Step 4: Simplify right side
    7,301.80x = 72,788,358.39
  5. Step 5: Solve for x
    x = 72,788,358.39/7,301.80
  6. Step 6: Final answer
    x = 9,968.55

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.