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Finding the Fourth Proportional to 12,959.51, 17,885.03 and 7,294.79

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Solution

The fourth proportional to 12,959.51, 17,885.03 and 7,294.79 is: 10,067.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,959.51 : 17,885.03 = 7,294.79 : x
  2. Step 2: Convert to fraction form
    12,959.51/17,885.03 = 7,294.79/x
  3. Step 3: Cross multiply
    12,959.51x = 17,885.03 × 7,294.79
  4. Step 4: Simplify right side
    12,959.51x = 130,467,546.23
  5. Step 5: Solve for x
    x = 130,467,546.23/12,959.51
  6. Step 6: Final answer
    x = 10,067.32

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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.