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Finding the Fourth Proportional to 8,032.80, 12,051.84 and 3,103.20

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Solution

The fourth proportional to 8,032.80, 12,051.84 and 3,103.20 is: 4,655.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,032.80 : 12,051.84 = 3,103.20 : x
  2. Step 2: Convert to fraction form
    8,032.80/12,051.84 = 3,103.20/x
  3. Step 3: Cross multiply
    8,032.80x = 12,051.84 × 3,103.20
  4. Step 4: Simplify right side
    8,032.80x = 37,399,269.89
  5. Step 5: Solve for x
    x = 37,399,269.89/8,032.80
  6. Step 6: Final answer
    x = 4,655.82

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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.