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Finding the Fourth Proportional to 63,239.94, 87,290.73 and 39,048.57

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Solution

The fourth proportional to 63,239.94, 87,290.73 and 39,048.57 is: 53,899.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,239.94 : 87,290.73 = 39,048.57 : x
  2. Step 2: Convert to fraction form
    63,239.94/87,290.73 = 39,048.57/x
  3. Step 3: Cross multiply
    63,239.94x = 87,290.73 × 39,048.57
  4. Step 4: Simplify right side
    63,239.94x = 3,408,578,180.76
  5. Step 5: Solve for x
    x = 3,408,578,180.76/63,239.94
  6. Step 6: Final answer
    x = 53,899.14

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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.