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Finding the Fourth Proportional to 6,608.76, 9,114.84 and 5,617.32

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Solution

The fourth proportional to 6,608.76, 9,114.84 and 5,617.32 is: 7,747.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,608.76 : 9,114.84 = 5,617.32 : x
  2. Step 2: Convert to fraction form
    6,608.76/9,114.84 = 5,617.32/x
  3. Step 3: Cross multiply
    6,608.76x = 9,114.84 × 5,617.32
  4. Step 4: Simplify right side
    6,608.76x = 51,200,973.03
  5. Step 5: Solve for x
    x = 51,200,973.03/6,608.76
  6. Step 6: Final answer
    x = 7,747.44

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Half scale
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Double scale
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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.