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Finding the Fourth Proportional to 9,279.54, 13,918.19 and 2,616.54

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Solution

The fourth proportional to 9,279.54, 13,918.19 and 2,616.54 is: 3,924.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,279.54 : 13,918.19 = 2,616.54 : x
  2. Step 2: Convert to fraction form
    9,279.54/13,918.19 = 2,616.54/x
  3. Step 3: Cross multiply
    9,279.54x = 13,918.19 × 2,616.54
  4. Step 4: Simplify right side
    9,279.54x = 36,417,507.40
  5. Step 5: Solve for x
    x = 36,417,507.40/9,279.54
  6. Step 6: Final answer
    x = 3,924.49

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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.