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Finding the Fourth Proportional to 58,890.88, 81,295.95 and 38,758.33

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Solution

The fourth proportional to 58,890.88, 81,295.95 and 38,758.33 is: 53,503.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,890.88 : 81,295.95 = 38,758.33 : x
  2. Step 2: Convert to fraction form
    58,890.88/81,295.95 = 38,758.33/x
  3. Step 3: Cross multiply
    58,890.88x = 81,295.95 × 38,758.33
  4. Step 4: Simplify right side
    58,890.88x = 3,150,895,257.76
  5. Step 5: Solve for x
    x = 3,150,895,257.76/58,890.88
  6. Step 6: Final answer
    x = 53,503.96

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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.