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Finding the Fourth Proportional to 5,756.76, 8,633.70 and 1,860.12

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Solution

The fourth proportional to 5,756.76, 8,633.70 and 1,860.12 is: 2,789.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,756.76 : 8,633.70 = 1,860.12 : x
  2. Step 2: Convert to fraction form
    5,756.76/8,633.70 = 1,860.12/x
  3. Step 3: Cross multiply
    5,756.76x = 8,633.70 × 1,860.12
  4. Step 4: Simplify right side
    5,756.76x = 16,059,718.04
  5. Step 5: Solve for x
    x = 16,059,718.04/5,756.76
  6. Step 6: Final answer
    x = 2,789.71

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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.