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Finding the Fourth Proportional to 5,225.99, 7,211.84 and 2,868.11

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Solution

The fourth proportional to 5,225.99, 7,211.84 and 2,868.11 is: 3,957.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,225.99 : 7,211.84 = 2,868.11 : x
  2. Step 2: Convert to fraction form
    5,225.99/7,211.84 = 2,868.11/x
  3. Step 3: Cross multiply
    5,225.99x = 7,211.84 × 2,868.11
  4. Step 4: Simplify right side
    5,225.99x = 20,684,327.07
  5. Step 5: Solve for x
    x = 20,684,327.07/5,225.99
  6. Step 6: Final answer
    x = 3,957.98

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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.