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Finding the Fourth Proportional to 5,591.76, 8,387.36 and 1,696.48

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Solution

The fourth proportional to 5,591.76, 8,387.36 and 1,696.48 is: 2,544.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,591.76 : 8,387.36 = 1,696.48 : x
  2. Step 2: Convert to fraction form
    5,591.76/8,387.36 = 1,696.48/x
  3. Step 3: Cross multiply
    5,591.76x = 8,387.36 × 1,696.48
  4. Step 4: Simplify right side
    5,591.76x = 14,228,988.49
  5. Step 5: Solve for x
    x = 14,228,988.49/5,591.76
  6. Step 6: Final answer
    x = 2,544.64

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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.