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Finding the Fourth Proportional to 8,816.66, 12,166.88 and 4,837.81

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Solution

The fourth proportional to 8,816.66, 12,166.88 and 4,837.81 is: 6,676.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,816.66 : 12,166.88 = 4,837.81 : x
  2. Step 2: Convert to fraction form
    8,816.66/12,166.88 = 4,837.81/x
  3. Step 3: Cross multiply
    8,816.66x = 12,166.88 × 4,837.81
  4. Step 4: Simplify right side
    8,816.66x = 58,861,053.73
  5. Step 5: Solve for x
    x = 58,861,053.73/8,816.66
  6. Step 6: Final answer
    x = 6,676.12

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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.