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Finding the Fourth Proportional to 8,841.72, 12,201.12 and 4,862.73

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Solution

The fourth proportional to 8,841.72, 12,201.12 and 4,862.73 is: 6,710.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,841.72 : 12,201.12 = 4,862.73 : x
  2. Step 2: Convert to fraction form
    8,841.72/12,201.12 = 4,862.73/x
  3. Step 3: Cross multiply
    8,841.72x = 12,201.12 × 4,862.73
  4. Step 4: Simplify right side
    8,841.72x = 59,330,752.26
  5. Step 5: Solve for x
    x = 59,330,752.26/8,841.72
  6. Step 6: Final answer
    x = 6,710.32

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Half scale
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Double scale
Find fourth proportional to 8,842.72, 12,202.50 and 4,863.73
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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.