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Finding the Fourth Proportional to 8,761.10, 13,145.55 and 4,600.10

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Solution

The fourth proportional to 8,761.10, 13,145.55 and 4,600.10 is: 6,902.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,761.10 : 13,145.55 = 4,600.10 : x
  2. Step 2: Convert to fraction form
    8,761.10/13,145.55 = 4,600.10/x
  3. Step 3: Cross multiply
    8,761.10x = 13,145.55 × 4,600.10
  4. Step 4: Simplify right side
    8,761.10x = 60,470,844.56
  5. Step 5: Solve for x
    x = 60,470,844.56/8,761.10
  6. Step 6: Final answer
    x = 6,902.20

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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.