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Finding the Fourth Proportional to 9,744.78, 13,447.44 and 5,552.22

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Solution

The fourth proportional to 9,744.78, 13,447.44 and 5,552.22 is: 7,661.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,744.78 : 13,447.44 = 5,552.22 : x
  2. Step 2: Convert to fraction form
    9,744.78/13,447.44 = 5,552.22/x
  3. Step 3: Cross multiply
    9,744.78x = 13,447.44 × 5,552.22
  4. Step 4: Simplify right side
    9,744.78x = 74,663,145.32
  5. Step 5: Solve for x
    x = 74,663,145.32/9,744.78
  6. Step 6: Final answer
    x = 7,661.86

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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.