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Finding the Fourth Proportional to 9,963.47, 14,945.07 and 3,394.24

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Solution

The fourth proportional to 9,963.47, 14,945.07 and 3,394.24 is: 5,091.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,963.47 : 14,945.07 = 3,394.24 : x
  2. Step 2: Convert to fraction form
    9,963.47/14,945.07 = 3,394.24/x
  3. Step 3: Cross multiply
    9,963.47x = 14,945.07 × 3,394.24
  4. Step 4: Simplify right side
    9,963.47x = 50,727,154.40
  5. Step 5: Solve for x
    x = 50,727,154.40/9,963.47
  6. Step 6: Final answer
    x = 5,091.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.