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Finding the Fourth Proportional to 3,561.87, 4,914.54 and 2,068.92

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Solution

The fourth proportional to 3,561.87, 4,914.54 and 2,068.92 is: 2,854.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,561.87 : 4,914.54 = 2,068.92 : x
  2. Step 2: Convert to fraction form
    3,561.87/4,914.54 = 2,068.92/x
  3. Step 3: Cross multiply
    3,561.87x = 4,914.54 × 2,068.92
  4. Step 4: Simplify right side
    3,561.87x = 10,167,790.10
  5. Step 5: Solve for x
    x = 10,167,790.10/3,561.87
  6. Step 6: Final answer
    x = 2,854.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.