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Finding the Fourth Proportional to 13,016.64, 17,963.01 and 7,048.30

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Solution

The fourth proportional to 13,016.64, 17,963.01 and 7,048.30 is: 9,726.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,016.64 : 17,963.01 = 7,048.30 : x
  2. Step 2: Convert to fraction form
    13,016.64/17,963.01 = 7,048.30/x
  3. Step 3: Cross multiply
    13,016.64x = 17,963.01 × 7,048.30
  4. Step 4: Simplify right side
    13,016.64x = 126,608,652.33
  5. Step 5: Solve for x
    x = 126,608,652.33/13,016.64
  6. Step 6: Final answer
    x = 9,726.68

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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.