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Finding the Fourth Proportional to 7,613.10, 11,410.56 and 3,917.10

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Solution

The fourth proportional to 7,613.10, 11,410.56 and 3,917.10 is: 5,870.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,613.10 : 11,410.56 = 3,917.10 : x
  2. Step 2: Convert to fraction form
    7,613.10/11,410.56 = 3,917.10/x
  3. Step 3: Cross multiply
    7,613.10x = 11,410.56 × 3,917.10
  4. Step 4: Simplify right side
    7,613.10x = 44,696,304.58
  5. Step 5: Solve for x
    x = 44,696,304.58/7,613.10
  6. Step 6: Final answer
    x = 5,870.97

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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.