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Finding the Fourth Proportional to 27,603.55, 38,092.90 and 15,028.30

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Solution

The fourth proportional to 27,603.55, 38,092.90 and 15,028.30 is: 20,739.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,603.55 : 38,092.90 = 15,028.30 : x
  2. Step 2: Convert to fraction form
    27,603.55/38,092.90 = 15,028.30/x
  3. Step 3: Cross multiply
    27,603.55x = 38,092.90 × 15,028.30
  4. Step 4: Simplify right side
    27,603.55x = 572,471,529.07
  5. Step 5: Solve for x
    x = 572,471,529.07/27,603.55
  6. Step 6: Final answer
    x = 20,739.05

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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.