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Finding the Fourth Proportional to 8,884.55, 12,260.71 and 4,905.69

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Solution

The fourth proportional to 8,884.55, 12,260.71 and 4,905.69 is: 6,769.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,884.55 : 12,260.71 = 4,905.69 : x
  2. Step 2: Convert to fraction form
    8,884.55/12,260.71 = 4,905.69/x
  3. Step 3: Cross multiply
    8,884.55x = 12,260.71 × 4,905.69
  4. Step 4: Simplify right side
    8,884.55x = 60,147,242.44
  5. Step 5: Solve for x
    x = 60,147,242.44/8,884.55
  6. Step 6: Final answer
    x = 6,769.87

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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.