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Finding the Fourth Proportional to 12,232.04, 16,879.04 and 9,720.22

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Solution

The fourth proportional to 12,232.04, 16,879.04 and 9,720.22 is: 13,412.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,232.04 : 16,879.04 = 9,720.22 : x
  2. Step 2: Convert to fraction form
    12,232.04/16,879.04 = 9,720.22/x
  3. Step 3: Cross multiply
    12,232.04x = 16,879.04 × 9,720.22
  4. Step 4: Simplify right side
    12,232.04x = 164,067,982.19
  5. Step 5: Solve for x
    x = 164,067,982.19/12,232.04
  6. Step 6: Final answer
    x = 13,412.97

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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.