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Finding the Fourth Proportional to 58,267.30, 87,402.78 and 18,824.77

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Solution

The fourth proportional to 58,267.30, 87,402.78 and 18,824.77 is: 28,237.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,267.30 : 87,402.78 = 18,824.77 : x
  2. Step 2: Convert to fraction form
    58,267.30/87,402.78 = 18,824.77/x
  3. Step 3: Cross multiply
    58,267.30x = 87,402.78 × 18,824.77
  4. Step 4: Simplify right side
    58,267.30x = 1,645,337,230.86
  5. Step 5: Solve for x
    x = 1,645,337,230.86/58,267.30
  6. Step 6: Final answer
    x = 28,237.75

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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.