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Finding the Fourth Proportional to 38,992.82, 58,488.71 and 9,410.51

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Solution

The fourth proportional to 38,992.82, 58,488.71 and 9,410.51 is: 14,115.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,992.82 : 58,488.71 = 9,410.51 : x
  2. Step 2: Convert to fraction form
    38,992.82/58,488.71 = 9,410.51/x
  3. Step 3: Cross multiply
    38,992.82x = 58,488.71 × 9,410.51
  4. Step 4: Simplify right side
    38,992.82x = 550,408,689.51
  5. Step 5: Solve for x
    x = 550,408,689.51/38,992.82
  6. Step 6: Final answer
    x = 14,115.64

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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.