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Finding the Fourth Proportional to 7,937.12, 10,940.54 and 5,919.59

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Solution

The fourth proportional to 7,937.12, 10,940.54 and 5,919.59 is: 8,159.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,937.12 : 10,940.54 = 5,919.59 : x
  2. Step 2: Convert to fraction form
    7,937.12/10,940.54 = 5,919.59/x
  3. Step 3: Cross multiply
    7,937.12x = 10,940.54 × 5,919.59
  4. Step 4: Simplify right side
    7,937.12x = 64,763,426.88
  5. Step 5: Solve for x
    x = 64,763,426.88/7,937.12
  6. Step 6: Final answer
    x = 8,159.57

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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.