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Finding the Fourth Proportional to 7,994.72, 11,019.48 and 5,341.16

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Solution

The fourth proportional to 7,994.72, 11,019.48 and 5,341.16 is: 7,361.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,994.72 : 11,019.48 = 5,341.16 : x
  2. Step 2: Convert to fraction form
    7,994.72/11,019.48 = 5,341.16/x
  3. Step 3: Cross multiply
    7,994.72x = 11,019.48 × 5,341.16
  4. Step 4: Simplify right side
    7,994.72x = 58,856,750.70
  5. Step 5: Solve for x
    x = 58,856,750.70/7,994.72
  6. Step 6: Final answer
    x = 7,361.96

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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.