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Finding the Fourth Proportional to 3,570.65, 5,387.39 and 3,447.93

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Solution

The fourth proportional to 3,570.65, 5,387.39 and 3,447.93 is: 5,202.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,570.65 : 5,387.39 = 3,447.93 : x
  2. Step 2: Convert to fraction form
    3,570.65/5,387.39 = 3,447.93/x
  3. Step 3: Cross multiply
    3,570.65x = 5,387.39 × 3,447.93
  4. Step 4: Simplify right side
    3,570.65x = 18,575,326.36
  5. Step 5: Solve for x
    x = 18,575,326.36/3,570.65
  6. Step 6: Final answer
    x = 5,202.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.