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Finding the Fourth Proportional to 7,974.84, 11,007.18 and 5,495.16

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Solution

The fourth proportional to 7,974.84, 11,007.18 and 5,495.16 is: 7,584.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,974.84 : 11,007.18 = 5,495.16 : x
  2. Step 2: Convert to fraction form
    7,974.84/11,007.18 = 5,495.16/x
  3. Step 3: Cross multiply
    7,974.84x = 11,007.18 × 5,495.16
  4. Step 4: Simplify right side
    7,974.84x = 60,486,215.25
  5. Step 5: Solve for x
    x = 60,486,215.25/7,974.84
  6. Step 6: Final answer
    x = 7,584.63

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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.