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Finding the Fourth Proportional to 7,299.24, 10,072.98 and 3,987.24

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Solution

The fourth proportional to 7,299.24, 10,072.98 and 3,987.24 is: 5,502.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,299.24 : 10,072.98 = 3,987.24 : x
  2. Step 2: Convert to fraction form
    7,299.24/10,072.98 = 3,987.24/x
  3. Step 3: Cross multiply
    7,299.24x = 10,072.98 × 3,987.24
  4. Step 4: Simplify right side
    7,299.24x = 40,163,388.78
  5. Step 5: Solve for x
    x = 40,163,388.78/7,299.24
  6. Step 6: Final answer
    x = 5,502.41

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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.