Home / 7,693.20-11,539.80-7,328.70

Finding the Fourth Proportional to 7,693.20, 11,539.80 and 7,328.70

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Solution

The fourth proportional to 7,693.20, 11,539.80 and 7,328.70 is: 10,993.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,693.20 : 11,539.80 = 7,328.70 : x
  2. Step 2: Convert to fraction form
    7,693.20/11,539.80 = 7,328.70/x
  3. Step 3: Cross multiply
    7,693.20x = 11,539.80 × 7,328.70
  4. Step 4: Simplify right side
    7,693.20x = 84,571,732.26
  5. Step 5: Solve for x
    x = 84,571,732.26/7,693.20
  6. Step 6: Final answer
    x = 10,993.05

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Double scale
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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.