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Finding the Fourth Proportional to 7,243.41, 9,992.55 and 5,008.39

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Solution

The fourth proportional to 7,243.41, 9,992.55 and 5,008.39 is: 6,909.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,243.41 : 9,992.55 = 5,008.39 : x
  2. Step 2: Convert to fraction form
    7,243.41/9,992.55 = 5,008.39/x
  3. Step 3: Cross multiply
    7,243.41x = 9,992.55 × 5,008.39
  4. Step 4: Simplify right side
    7,243.41x = 50,046,587.49
  5. Step 5: Solve for x
    x = 50,046,587.49/7,243.41
  6. Step 6: Final answer
    x = 6,909.26

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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.