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Finding the Fourth Proportional to 5,615.93, 8,422.08 and 2,653.97

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Solution

The fourth proportional to 5,615.93, 8,422.08 and 2,653.97 is: 3,980.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,615.93 : 8,422.08 = 2,653.97 : x
  2. Step 2: Convert to fraction form
    5,615.93/8,422.08 = 2,653.97/x
  3. Step 3: Cross multiply
    5,615.93x = 8,422.08 × 2,653.97
  4. Step 4: Simplify right side
    5,615.93x = 22,351,895.59
  5. Step 5: Solve for x
    x = 22,351,895.59/5,615.93
  6. Step 6: Final answer
    x = 3,980.09

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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.