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Finding the Fourth Proportional to 58,471.07, 87,697.49 and 19,027.91

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Solution

The fourth proportional to 58,471.07, 87,697.49 and 19,027.91 is: 28,538.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,471.07 : 87,697.49 = 19,027.91 : x
  2. Step 2: Convert to fraction form
    58,471.07/87,697.49 = 19,027.91/x
  3. Step 3: Cross multiply
    58,471.07x = 87,697.49 × 19,027.91
  4. Step 4: Simplify right side
    58,471.07x = 1,668,700,071.05
  5. Step 5: Solve for x
    x = 1,668,700,071.05/58,471.07
  6. Step 6: Final answer
    x = 28,538.90

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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.