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Finding the Fourth Proportional to 7,291.80, 10,943.10 and 4,825.80

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Solution

The fourth proportional to 7,291.80, 10,943.10 and 4,825.80 is: 7,242.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,291.80 : 10,943.10 = 4,825.80 : x
  2. Step 2: Convert to fraction form
    7,291.80/10,943.10 = 4,825.80/x
  3. Step 3: Cross multiply
    7,291.80x = 10,943.10 × 4,825.80
  4. Step 4: Simplify right side
    7,291.80x = 52,809,211.98
  5. Step 5: Solve for x
    x = 52,809,211.98/7,291.80
  6. Step 6: Final answer
    x = 7,242.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.