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Finding the Fourth Proportional to 58,042.20, 87,063.30 and 18,603.30

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Solution

The fourth proportional to 58,042.20, 87,063.30 and 18,603.30 is: 27,904.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,042.20 : 87,063.30 = 18,603.30 : x
  2. Step 2: Convert to fraction form
    58,042.20/87,063.30 = 18,603.30/x
  3. Step 3: Cross multiply
    58,042.20x = 87,063.30 × 18,603.30
  4. Step 4: Simplify right side
    58,042.20x = 1,619,664,688.89
  5. Step 5: Solve for x
    x = 1,619,664,688.89/58,042.20
  6. Step 6: Final answer
    x = 27,904.95

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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.