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Finding the Fourth Proportional to 3,473.62, 5,210.43 and 876.76

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Solution

The fourth proportional to 3,473.62, 5,210.43 and 876.76 is: 1,315.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,473.62 : 5,210.43 = 876.76 : x
  2. Step 2: Convert to fraction form
    3,473.62/5,210.43 = 876.76/x
  3. Step 3: Cross multiply
    3,473.62x = 5,210.43 × 876.76
  4. Step 4: Simplify right side
    3,473.62x = 4,568,296.61
  5. Step 5: Solve for x
    x = 4,568,296.61/3,473.62
  6. Step 6: Final answer
    x = 1,315.14

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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.