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Finding the Fourth Proportional to 7,955.97, 10,979.55 and 5,443.35

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Solution

The fourth proportional to 7,955.97, 10,979.55 and 5,443.35 is: 7,512.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,955.97 : 10,979.55 = 5,443.35 : x
  2. Step 2: Convert to fraction form
    7,955.97/10,979.55 = 5,443.35/x
  3. Step 3: Cross multiply
    7,955.97x = 10,979.55 × 5,443.35
  4. Step 4: Simplify right side
    7,955.97x = 59,765,533.49
  5. Step 5: Solve for x
    x = 59,765,533.49/7,955.97
  6. Step 6: Final answer
    x = 7,512.04

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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.