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Finding the Fourth Proportional to 6,787.16, 9,365.64 and 3,803.12

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Solution

The fourth proportional to 6,787.16, 9,365.64 and 3,803.12 is: 5,247.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,787.16 : 9,365.64 = 3,803.12 : x
  2. Step 2: Convert to fraction form
    6,787.16/9,365.64 = 3,803.12/x
  3. Step 3: Cross multiply
    6,787.16x = 9,365.64 × 3,803.12
  4. Step 4: Simplify right side
    6,787.16x = 35,618,605.97
  5. Step 5: Solve for x
    x = 35,618,605.97/6,787.16
  6. Step 6: Final answer
    x = 5,247.94

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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.