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Finding the Fourth Proportional to 7,953.16, 11,930.10 and 2,759.44

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Solution

The fourth proportional to 7,953.16, 11,930.10 and 2,759.44 is: 4,139.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,953.16 : 11,930.10 = 2,759.44 : x
  2. Step 2: Convert to fraction form
    7,953.16/11,930.10 = 2,759.44/x
  3. Step 3: Cross multiply
    7,953.16x = 11,930.10 × 2,759.44
  4. Step 4: Simplify right side
    7,953.16x = 32,920,395.14
  5. Step 5: Solve for x
    x = 32,920,395.14/7,953.16
  6. Step 6: Final answer
    x = 4,139.28

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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.