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Finding the Fourth Proportional to 7,159.97, 9,880.71 and 4,016.16

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Solution

The fourth proportional to 7,159.97, 9,880.71 and 4,016.16 is: 5,542.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,159.97 : 9,880.71 = 4,016.16 : x
  2. Step 2: Convert to fraction form
    7,159.97/9,880.71 = 4,016.16/x
  3. Step 3: Cross multiply
    7,159.97x = 9,880.71 × 4,016.16
  4. Step 4: Simplify right side
    7,159.97x = 39,682,512.27
  5. Step 5: Solve for x
    x = 39,682,512.27/7,159.97
  6. Step 6: Final answer
    x = 5,542.28

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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.