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Finding the Fourth Proportional to 5,097.40, 7,034.22 and 2,859.40

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Solution

The fourth proportional to 5,097.40, 7,034.22 and 2,859.40 is: 3,945.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,097.40 : 7,034.22 = 2,859.40 : x
  2. Step 2: Convert to fraction form
    5,097.40/7,034.22 = 2,859.40/x
  3. Step 3: Cross multiply
    5,097.40x = 7,034.22 × 2,859.40
  4. Step 4: Simplify right side
    5,097.40x = 20,113,648.67
  5. Step 5: Solve for x
    x = 20,113,648.67/5,097.40
  6. Step 6: Final answer
    x = 3,945.86

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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.