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Finding the Fourth Proportional to 13,035.80, 17,989.42 and 7,067.44

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Solution

The fourth proportional to 13,035.80, 17,989.42 and 7,067.44 is: 9,753.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,035.80 : 17,989.42 = 7,067.44 : x
  2. Step 2: Convert to fraction form
    13,035.80/17,989.42 = 7,067.44/x
  3. Step 3: Cross multiply
    13,035.80x = 17,989.42 × 7,067.44
  4. Step 4: Simplify right side
    13,035.80x = 127,139,146.48
  5. Step 5: Solve for x
    x = 127,139,146.48/13,035.80
  6. Step 6: Final answer
    x = 9,753.08

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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.