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Finding the Fourth Proportional to 8,616.54, 11,892.12 and 4,841.22

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Solution

The fourth proportional to 8,616.54, 11,892.12 and 4,841.22 is: 6,681.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,616.54 : 11,892.12 = 4,841.22 : x
  2. Step 2: Convert to fraction form
    8,616.54/11,892.12 = 4,841.22/x
  3. Step 3: Cross multiply
    8,616.54x = 11,892.12 × 4,841.22
  4. Step 4: Simplify right side
    8,616.54x = 57,572,369.19
  5. Step 5: Solve for x
    x = 57,572,369.19/8,616.54
  6. Step 6: Final answer
    x = 6,681.61

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Half scale
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Double scale
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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.