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Finding the Fourth Proportional to 8,775.54, 13,164.12 and 3,230.28

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Solution

The fourth proportional to 8,775.54, 13,164.12 and 3,230.28 is: 4,845.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,775.54 : 13,164.12 = 3,230.28 : x
  2. Step 2: Convert to fraction form
    8,775.54/13,164.12 = 3,230.28/x
  3. Step 3: Cross multiply
    8,775.54x = 13,164.12 × 3,230.28
  4. Step 4: Simplify right side
    8,775.54x = 42,523,793.55
  5. Step 5: Solve for x
    x = 42,523,793.55/8,775.54
  6. Step 6: Final answer
    x = 4,845.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.