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Finding the Fourth Proportional to 7,107.04, 9,807.42 and 3,963.52

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Solution

The fourth proportional to 7,107.04, 9,807.42 and 3,963.52 is: 5,469.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,107.04 : 9,807.42 = 3,963.52 : x
  2. Step 2: Convert to fraction form
    7,107.04/9,807.42 = 3,963.52/x
  3. Step 3: Cross multiply
    7,107.04x = 9,807.42 × 3,963.52
  4. Step 4: Simplify right side
    7,107.04x = 38,871,905.32
  5. Step 5: Solve for x
    x = 38,871,905.32/7,107.04
  6. Step 6: Final answer
    x = 5,469.49

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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.