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Finding the Fourth Proportional to 5,163.90, 7,248.90 and 5,163.90

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Solution

The fourth proportional to 5,163.90, 7,248.90 and 5,163.90 is: 7,248.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,163.90 : 7,248.90 = 5,163.90 : x
  2. Step 2: Convert to fraction form
    5,163.90/7,248.90 = 5,163.90/x
  3. Step 3: Cross multiply
    5,163.90x = 7,248.90 × 5,163.90
  4. Step 4: Simplify right side
    5,163.90x = 37,432,594.71
  5. Step 5: Solve for x
    x = 37,432,594.71/5,163.90
  6. Step 6: Final answer
    x = 7,248.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.