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Finding the Fourth Proportional to 58,301.52, 87,455.01 and 18,861.71

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Solution

The fourth proportional to 58,301.52, 87,455.01 and 18,861.71 is: 28,293.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,301.52 : 87,455.01 = 18,861.71 : x
  2. Step 2: Convert to fraction form
    58,301.52/87,455.01 = 18,861.71/x
  3. Step 3: Cross multiply
    58,301.52x = 87,455.01 × 18,861.71
  4. Step 4: Simplify right side
    58,301.52x = 1,649,550,599.39
  5. Step 5: Solve for x
    x = 1,649,550,599.39/58,301.52
  6. Step 6: Final answer
    x = 28,293.44

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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.