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Finding the Fourth Proportional to 58,140.69, 87,208.12 and 16,021.12

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Solution

The fourth proportional to 58,140.69, 87,208.12 and 16,021.12 is: 24,030.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,140.69 : 87,208.12 = 16,021.12 : x
  2. Step 2: Convert to fraction form
    58,140.69/87,208.12 = 16,021.12/x
  3. Step 3: Cross multiply
    58,140.69x = 87,208.12 × 16,021.12
  4. Step 4: Simplify right side
    58,140.69x = 1,397,171,755.49
  5. Step 5: Solve for x
    x = 1,397,171,755.49/58,140.69
  6. Step 6: Final answer
    x = 24,030.88

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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.