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Finding the Fourth Proportional to 7,868.70, 11,800.08 and 2,937.24

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Solution

The fourth proportional to 7,868.70, 11,800.08 and 2,937.24 is: 4,404.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.70 : 11,800.08 = 2,937.24 : x
  2. Step 2: Convert to fraction form
    7,868.70/11,800.08 = 2,937.24/x
  3. Step 3: Cross multiply
    7,868.70x = 11,800.08 × 2,937.24
  4. Step 4: Simplify right side
    7,868.70x = 34,659,666.98
  5. Step 5: Solve for x
    x = 34,659,666.98/7,868.70
  6. Step 6: Final answer
    x = 4,404.75

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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.