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Finding the Fourth Proportional to 7,967.78, 10,994.76 and 4,609.92

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Solution

The fourth proportional to 7,967.78, 10,994.76 and 4,609.92 is: 6,361.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,967.78 : 10,994.76 = 4,609.92 : x
  2. Step 2: Convert to fraction form
    7,967.78/10,994.76 = 4,609.92/x
  3. Step 3: Cross multiply
    7,967.78x = 10,994.76 × 4,609.92
  4. Step 4: Simplify right side
    7,967.78x = 50,684,964.02
  5. Step 5: Solve for x
    x = 50,684,964.02/7,967.78
  6. Step 6: Final answer
    x = 6,361.24

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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.