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Finding the Fourth Proportional to 7,253.90, 10,002.78 and 5,369.44

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Solution

The fourth proportional to 7,253.90, 10,002.78 and 5,369.44 is: 7,404.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,253.90 : 10,002.78 = 5,369.44 : x
  2. Step 2: Convert to fraction form
    7,253.90/10,002.78 = 5,369.44/x
  3. Step 3: Cross multiply
    7,253.90x = 10,002.78 × 5,369.44
  4. Step 4: Simplify right side
    7,253.90x = 53,709,277.03
  5. Step 5: Solve for x
    x = 53,709,277.03/7,253.90
  6. Step 6: Final answer
    x = 7,404.19

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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.