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Finding the Fourth Proportional to 8,043.13, 12,067.13 and 5,421.16

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Solution

The fourth proportional to 8,043.13, 12,067.13 and 5,421.16 is: 8,133.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,043.13 : 12,067.13 = 5,421.16 : x
  2. Step 2: Convert to fraction form
    8,043.13/12,067.13 = 5,421.16/x
  3. Step 3: Cross multiply
    8,043.13x = 12,067.13 × 5,421.16
  4. Step 4: Simplify right side
    8,043.13x = 65,417,842.47
  5. Step 5: Solve for x
    x = 65,417,842.47/8,043.13
  6. Step 6: Final answer
    x = 8,133.38

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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.