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Finding the Fourth Proportional to 11,867.57, 17,801.19 and 3,547.65

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Solution

The fourth proportional to 11,867.57, 17,801.19 and 3,547.65 is: 5,321.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,867.57 : 17,801.19 = 3,547.65 : x
  2. Step 2: Convert to fraction form
    11,867.57/17,801.19 = 3,547.65/x
  3. Step 3: Cross multiply
    11,867.57x = 17,801.19 × 3,547.65
  4. Step 4: Simplify right side
    11,867.57x = 63,152,391.70
  5. Step 5: Solve for x
    x = 63,152,391.70/11,867.57
  6. Step 6: Final answer
    x = 5,321.43

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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.