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Finding the Fourth Proportional to 39,888.70, 59,832.78 and 19,049.02

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Solution

The fourth proportional to 39,888.70, 59,832.78 and 19,049.02 is: 28,573.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,888.70 : 59,832.78 = 19,049.02 : x
  2. Step 2: Convert to fraction form
    39,888.70/59,832.78 = 19,049.02/x
  3. Step 3: Cross multiply
    39,888.70x = 59,832.78 × 19,049.02
  4. Step 4: Simplify right side
    39,888.70x = 1,139,755,822.88
  5. Step 5: Solve for x
    x = 1,139,755,822.88/39,888.70
  6. Step 6: Final answer
    x = 28,573.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.