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Finding the Fourth Proportional to 17,178.38, 23,706.17 and 9,726.38

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Solution

The fourth proportional to 17,178.38, 23,706.17 and 9,726.38 is: 13,422.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,178.38 : 23,706.17 = 9,726.38 : x
  2. Step 2: Convert to fraction form
    17,178.38/23,706.17 = 9,726.38/x
  3. Step 3: Cross multiply
    17,178.38x = 23,706.17 × 9,726.38
  4. Step 4: Simplify right side
    17,178.38x = 230,575,050.60
  5. Step 5: Solve for x
    x = 230,575,050.60/17,178.38
  6. Step 6: Final answer
    x = 13,422.40

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Half scale
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Double scale
Find fourth proportional to 17,179.38, 23,707.55 and 9,727.38
Similar ratio
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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.