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Finding the Fourth Proportional to 5,357.54, 7,393.71 and 2,999.66

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Solution

The fourth proportional to 5,357.54, 7,393.71 and 2,999.66 is: 4,139.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,357.54 : 7,393.71 = 2,999.66 : x
  2. Step 2: Convert to fraction form
    5,357.54/7,393.71 = 2,999.66/x
  3. Step 3: Cross multiply
    5,357.54x = 7,393.71 × 2,999.66
  4. Step 4: Simplify right side
    5,357.54x = 22,178,616.14
  5. Step 5: Solve for x
    x = 22,178,616.14/5,357.54
  6. Step 6: Final answer
    x = 4,139.70

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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.