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Finding the Fourth Proportional to 27,578.84, 38,058.84 and 15,003.59

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Solution

The fourth proportional to 27,578.84, 38,058.84 and 15,003.59 is: 20,704.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,578.84 : 38,058.84 = 15,003.59 : x
  2. Step 2: Convert to fraction form
    27,578.84/38,058.84 = 15,003.59/x
  3. Step 3: Cross multiply
    27,578.84x = 38,058.84 × 15,003.59
  4. Step 4: Simplify right side
    27,578.84x = 571,019,040.94
  5. Step 5: Solve for x
    x = 571,019,040.94/27,578.84
  6. Step 6: Final answer
    x = 20,704.97

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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.