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Finding the Fourth Proportional to 6,605.76, 9,114.24 and 3,954.24

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Solution

The fourth proportional to 6,605.76, 9,114.24 and 3,954.24 is: 5,455.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,605.76 : 9,114.24 = 3,954.24 : x
  2. Step 2: Convert to fraction form
    6,605.76/9,114.24 = 3,954.24/x
  3. Step 3: Cross multiply
    6,605.76x = 9,114.24 × 3,954.24
  4. Step 4: Simplify right side
    6,605.76x = 36,039,892.38
  5. Step 5: Solve for x
    x = 36,039,892.38/6,605.76
  6. Step 6: Final answer
    x = 5,455.83

Related Problems

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Half scale
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Double scale
Find fourth proportional to 6,606.76, 9,115.62 and 3,955.24
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.