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Finding the Fourth Proportional to 7,206.80, 10,810.20 and 6,113.30

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Solution

The fourth proportional to 7,206.80, 10,810.20 and 6,113.30 is: 9,169.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,206.80 : 10,810.20 = 6,113.30 : x
  2. Step 2: Convert to fraction form
    7,206.80/10,810.20 = 6,113.30/x
  3. Step 3: Cross multiply
    7,206.80x = 10,810.20 × 6,113.30
  4. Step 4: Simplify right side
    7,206.80x = 66,085,995.66
  5. Step 5: Solve for x
    x = 66,085,995.66/7,206.80
  6. Step 6: Final answer
    x = 9,169.95

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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.