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Finding the Fourth Proportional to 8,879.72, 12,254.19 and 4,901.18

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Solution

The fourth proportional to 8,879.72, 12,254.19 and 4,901.18 is: 6,763.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,879.72 : 12,254.19 = 4,901.18 : x
  2. Step 2: Convert to fraction form
    8,879.72/12,254.19 = 4,901.18/x
  3. Step 3: Cross multiply
    8,879.72x = 12,254.19 × 4,901.18
  4. Step 4: Simplify right side
    8,879.72x = 60,059,990.94
  5. Step 5: Solve for x
    x = 60,059,990.94/8,879.72
  6. Step 6: Final answer
    x = 6,763.73

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Half scale
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Double scale
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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.