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Finding the Fourth Proportional to 58,353.40, 87,543.96 and 18,910.54

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Solution

The fourth proportional to 58,353.40, 87,543.96 and 18,910.54 is: 28,370.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,353.40 : 87,543.96 = 18,910.54 : x
  2. Step 2: Convert to fraction form
    58,353.40/87,543.96 = 18,910.54/x
  3. Step 3: Cross multiply
    58,353.40x = 87,543.96 × 18,910.54
  4. Step 4: Simplify right side
    58,353.40x = 1,655,503,557.34
  5. Step 5: Solve for x
    x = 1,655,503,557.34/58,353.40
  6. Step 6: Final answer
    x = 28,370.30

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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.