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Finding the Fourth Proportional to 58,469.85, 87,713.94 and 19,017.72

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Solution

The fourth proportional to 58,469.85, 87,713.94 and 19,017.72 is: 28,529.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,469.85 : 87,713.94 = 19,017.72 : x
  2. Step 2: Convert to fraction form
    58,469.85/87,713.94 = 19,017.72/x
  3. Step 3: Cross multiply
    58,469.85x = 87,713.94 × 19,017.72
  4. Step 4: Simplify right side
    58,469.85x = 1,668,119,151.02
  5. Step 5: Solve for x
    x = 1,668,119,151.02/58,469.85
  6. Step 6: Final answer
    x = 28,529.56

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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.