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Finding the Fourth Proportional to 3,859.92, 5,788.67 and 1,262.25

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Solution

The fourth proportional to 3,859.92, 5,788.67 and 1,262.25 is: 1,892.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,859.92 : 5,788.67 = 1,262.25 : x
  2. Step 2: Convert to fraction form
    3,859.92/5,788.67 = 1,262.25/x
  3. Step 3: Cross multiply
    3,859.92x = 5,788.67 × 1,262.25
  4. Step 4: Simplify right side
    3,859.92x = 7,306,742.40
  5. Step 5: Solve for x
    x = 7,306,742.40/3,859.92
  6. Step 6: Final answer
    x = 1,892.98

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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.