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Finding the Fourth Proportional to 5,860.98, 8,791.48 and 1,965.40

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Solution

The fourth proportional to 5,860.98, 8,791.48 and 1,965.40 is: 2,948.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,860.98 : 8,791.48 = 1,965.40 : x
  2. Step 2: Convert to fraction form
    5,860.98/8,791.48 = 1,965.40/x
  3. Step 3: Cross multiply
    5,860.98x = 8,791.48 × 1,965.40
  4. Step 4: Simplify right side
    5,860.98x = 17,278,774.79
  5. Step 5: Solve for x
    x = 17,278,774.79/5,860.98
  6. Step 6: Final answer
    x = 2,948.10

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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.