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Finding the Fourth Proportional to 5,411.04, 8,116.56 and 1,948.56

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Solution

The fourth proportional to 5,411.04, 8,116.56 and 1,948.56 is: 2,922.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,411.04 : 8,116.56 = 1,948.56 : x
  2. Step 2: Convert to fraction form
    5,411.04/8,116.56 = 1,948.56/x
  3. Step 3: Cross multiply
    5,411.04x = 8,116.56 × 1,948.56
  4. Step 4: Simplify right side
    5,411.04x = 15,815,604.15
  5. Step 5: Solve for x
    x = 15,815,604.15/5,411.04
  6. Step 6: Final answer
    x = 2,922.84

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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.