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Finding the Fourth Proportional to 7,230.60, 9,982.86 and 5,907.48

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Solution

The fourth proportional to 7,230.60, 9,982.86 and 5,907.48 is: 8,156.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,230.60 : 9,982.86 = 5,907.48 : x
  2. Step 2: Convert to fraction form
    7,230.60/9,982.86 = 5,907.48/x
  3. Step 3: Cross multiply
    7,230.60x = 9,982.86 × 5,907.48
  4. Step 4: Simplify right side
    7,230.60x = 58,973,545.79
  5. Step 5: Solve for x
    x = 58,973,545.79/7,230.60
  6. Step 6: Final answer
    x = 8,156.11

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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.