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Finding the Fourth Proportional to 58,524.80, 87,780.72 and 16,971.80

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Solution

The fourth proportional to 58,524.80, 87,780.72 and 16,971.80 is: 25,455.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,524.80 : 87,780.72 = 16,971.80 : x
  2. Step 2: Convert to fraction form
    58,524.80/87,780.72 = 16,971.80/x
  3. Step 3: Cross multiply
    58,524.80x = 87,780.72 × 16,971.80
  4. Step 4: Simplify right side
    58,524.80x = 1,489,796,823.70
  5. Step 5: Solve for x
    x = 1,489,796,823.70/58,524.80
  6. Step 6: Final answer
    x = 25,455.82

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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.