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Finding the Fourth Proportional to 5,921.75, 8,881.07 and 1,760.63

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Solution

The fourth proportional to 5,921.75, 8,881.07 and 1,760.63 is: 2,640.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,921.75 : 8,881.07 = 1,760.63 : x
  2. Step 2: Convert to fraction form
    5,921.75/8,881.07 = 1,760.63/x
  3. Step 3: Cross multiply
    5,921.75x = 8,881.07 × 1,760.63
  4. Step 4: Simplify right side
    5,921.75x = 15,636,296.08
  5. Step 5: Solve for x
    x = 15,636,296.08/5,921.75
  6. Step 6: Final answer
    x = 2,640.49

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Half scale
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Double scale
Find fourth proportional to 5,922.75, 8,882.57 and 1,761.63
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.