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Finding the Fourth Proportional to 7,934.34, 10,950.05 and 4,397.78

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Solution

The fourth proportional to 7,934.34, 10,950.05 and 4,397.78 is: 6,069.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,934.34 : 10,950.05 = 4,397.78 : x
  2. Step 2: Convert to fraction form
    7,934.34/10,950.05 = 4,397.78/x
  3. Step 3: Cross multiply
    7,934.34x = 10,950.05 × 4,397.78
  4. Step 4: Simplify right side
    7,934.34x = 48,155,910.89
  5. Step 5: Solve for x
    x = 48,155,910.89/7,934.34
  6. Step 6: Final answer
    x = 6,069.30

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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.