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Finding the Fourth Proportional to 6,570.65, 9,067.49 and 4,212.79

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Solution

The fourth proportional to 6,570.65, 9,067.49 and 4,212.79 is: 5,813.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,570.65 : 9,067.49 = 4,212.79 : x
  2. Step 2: Convert to fraction form
    6,570.65/9,067.49 = 4,212.79/x
  3. Step 3: Cross multiply
    6,570.65x = 9,067.49 × 4,212.79
  4. Step 4: Simplify right side
    6,570.65x = 38,199,364.80
  5. Step 5: Solve for x
    x = 38,199,364.80/6,570.65
  6. Step 6: Final answer
    x = 5,813.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.