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Finding the Fourth Proportional to 48,249.84, 72,703.44 and 39,676.80

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Solution

The fourth proportional to 48,249.84, 72,703.44 and 39,676.80 is: 59,785.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,249.84 : 72,703.44 = 39,676.80 : x
  2. Step 2: Convert to fraction form
    48,249.84/72,703.44 = 39,676.80/x
  3. Step 3: Cross multiply
    48,249.84x = 72,703.44 × 39,676.80
  4. Step 4: Simplify right side
    48,249.84x = 2,884,639,848.19
  5. Step 5: Solve for x
    x = 2,884,639,848.19/48,249.84
  6. Step 6: Final answer
    x = 59,785.48

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.