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Finding the Fourth Proportional to 5,195.52, 7,169.76 and 2,957.40

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Solution

The fourth proportional to 5,195.52, 7,169.76 and 2,957.40 is: 4,081.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,195.52 : 7,169.76 = 2,957.40 : x
  2. Step 2: Convert to fraction form
    5,195.52/7,169.76 = 2,957.40/x
  3. Step 3: Cross multiply
    5,195.52x = 7,169.76 × 2,957.40
  4. Step 4: Simplify right side
    5,195.52x = 21,203,848.22
  5. Step 5: Solve for x
    x = 21,203,848.22/5,195.52
  6. Step 6: Final answer
    x = 4,081.18

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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.