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Finding the Fourth Proportional to 58,518, 87,778.04 and 19,074.96

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Solution

The fourth proportional to 58,518, 87,778.04 and 19,074.96 is: 28,612.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,518 : 87,778.04 = 19,074.96 : x
  2. Step 2: Convert to fraction form
    58,518/87,778.04 = 19,074.96/x
  3. Step 3: Cross multiply
    58,518x = 87,778.04 × 19,074.96
  4. Step 4: Simplify right side
    58,518x = 1,674,362,601.88
  5. Step 5: Solve for x
    x = 1,674,362,601.88/58,518
  6. Step 6: Final answer
    x = 28,612.78

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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.