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Finding the Fourth Proportional to 6,612.99, 9,114.56 and 6,301.57

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Solution

The fourth proportional to 6,612.99, 9,114.56 and 6,301.57 is: 8,685.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,612.99 : 9,114.56 = 6,301.57 : x
  2. Step 2: Convert to fraction form
    6,612.99/9,114.56 = 6,301.57/x
  3. Step 3: Cross multiply
    6,612.99x = 9,114.56 × 6,301.57
  4. Step 4: Simplify right side
    6,612.99x = 57,435,960.78
  5. Step 5: Solve for x
    x = 57,435,960.78/6,612.99
  6. Step 6: Final answer
    x = 8,685.33

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.