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Finding the Fourth Proportional to 58,612.29, 87,900.03 and 21,167.43

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Solution

The fourth proportional to 58,612.29, 87,900.03 and 21,167.43 is: 31,744.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,612.29 : 87,900.03 = 21,167.43 : x
  2. Step 2: Convert to fraction form
    58,612.29/87,900.03 = 21,167.43/x
  3. Step 3: Cross multiply
    58,612.29x = 87,900.03 × 21,167.43
  4. Step 4: Simplify right side
    58,612.29x = 1,860,617,732.02
  5. Step 5: Solve for x
    x = 1,860,617,732.02/58,612.29
  6. Step 6: Final answer
    x = 31,744.50

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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.