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Finding the Fourth Proportional to 5,369.20, 7,409 and 3,010.88

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Solution

The fourth proportional to 5,369.20, 7,409 and 3,010.88 is: 4,154.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,369.20 : 7,409 = 3,010.88 : x
  2. Step 2: Convert to fraction form
    5,369.20/7,409 = 3,010.88/x
  3. Step 3: Cross multiply
    5,369.20x = 7,409 × 3,010.88
  4. Step 4: Simplify right side
    5,369.20x = 22,307,609.92
  5. Step 5: Solve for x
    x = 22,307,609.92/5,369.20
  6. Step 6: Final answer
    x = 4,154.74

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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.