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Finding the Fourth Proportional to 7,337.80, 11,009.40 and 7,067.80

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Solution

The fourth proportional to 7,337.80, 11,009.40 and 7,067.80 is: 10,604.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,337.80 : 11,009.40 = 7,067.80 : x
  2. Step 2: Convert to fraction form
    7,337.80/11,009.40 = 7,067.80/x
  3. Step 3: Cross multiply
    7,337.80x = 11,009.40 × 7,067.80
  4. Step 4: Simplify right side
    7,337.80x = 77,812,237.32
  5. Step 5: Solve for x
    x = 77,812,237.32/7,337.80
  6. Step 6: Final answer
    x = 10,604.30

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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.