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Finding the Fourth Proportional to 9,230.76, 12,708.90 and 7,468.20

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Solution

The fourth proportional to 9,230.76, 12,708.90 and 7,468.20 is: 10,282.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,230.76 : 12,708.90 = 7,468.20 : x
  2. Step 2: Convert to fraction form
    9,230.76/12,708.90 = 7,468.20/x
  3. Step 3: Cross multiply
    9,230.76x = 12,708.90 × 7,468.20
  4. Step 4: Simplify right side
    9,230.76x = 94,912,606.98
  5. Step 5: Solve for x
    x = 94,912,606.98/9,230.76
  6. Step 6: Final answer
    x = 10,282.21

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Half scale
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Double scale
Find fourth proportional to 9,231.76, 12,710.28 and 7,469.20
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.