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Finding the Fourth Proportional to 2,958.62, 4,403 and 2,860.18

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Solution

The fourth proportional to 2,958.62, 4,403 and 2,860.18 is: 4,256.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,958.62 : 4,403 = 2,860.18 : x
  2. Step 2: Convert to fraction form
    2,958.62/4,403 = 2,860.18/x
  3. Step 3: Cross multiply
    2,958.62x = 4,403 × 2,860.18
  4. Step 4: Simplify right side
    2,958.62x = 12,593,372.54
  5. Step 5: Solve for x
    x = 12,593,372.54/2,958.62
  6. Step 6: Final answer
    x = 4,256.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.