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Finding the Fourth Proportional to 7,311.08, 10,948.05 and 4,020.45

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Solution

The fourth proportional to 7,311.08, 10,948.05 and 4,020.45 is: 6,020.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,311.08 : 10,948.05 = 4,020.45 : x
  2. Step 2: Convert to fraction form
    7,311.08/10,948.05 = 4,020.45/x
  3. Step 3: Cross multiply
    7,311.08x = 10,948.05 × 4,020.45
  4. Step 4: Simplify right side
    7,311.08x = 44,016,087.62
  5. Step 5: Solve for x
    x = 44,016,087.62/7,311.08
  6. Step 6: Final answer
    x = 6,020.47

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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.