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Finding the Fourth Proportional to 14,863.41, 20,512.34 and 8,817.23

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Solution

The fourth proportional to 14,863.41, 20,512.34 and 8,817.23 is: 12,168.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,863.41 : 20,512.34 = 8,817.23 : x
  2. Step 2: Convert to fraction form
    14,863.41/20,512.34 = 8,817.23/x
  3. Step 3: Cross multiply
    14,863.41x = 20,512.34 × 8,817.23
  4. Step 4: Simplify right side
    14,863.41x = 180,862,019.62
  5. Step 5: Solve for x
    x = 180,862,019.62/14,863.41
  6. Step 6: Final answer
    x = 12,168.27

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Half scale
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Double scale
Find fourth proportional to 14,864.41, 20,513.72 and 8,818.23
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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.