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Finding the Fourth Proportional to 11,641.65, 17,465.17 and 4,245.81

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Solution

The fourth proportional to 11,641.65, 17,465.17 and 4,245.81 is: 6,369.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,641.65 : 17,465.17 = 4,245.81 : x
  2. Step 2: Convert to fraction form
    11,641.65/17,465.17 = 4,245.81/x
  3. Step 3: Cross multiply
    11,641.65x = 17,465.17 × 4,245.81
  4. Step 4: Simplify right side
    11,641.65x = 74,153,793.44
  5. Step 5: Solve for x
    x = 74,153,793.44/11,641.65
  6. Step 6: Final answer
    x = 6,369.70

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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.