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Finding the Fourth Proportional to 58,073.76, 87,051.83 and 39,355.70

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Solution

The fourth proportional to 58,073.76, 87,051.83 and 39,355.70 is: 58,993.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,073.76 : 87,051.83 = 39,355.70 : x
  2. Step 2: Convert to fraction form
    58,073.76/87,051.83 = 39,355.70/x
  3. Step 3: Cross multiply
    58,073.76x = 87,051.83 × 39,355.70
  4. Step 4: Simplify right side
    58,073.76x = 3,425,985,073.89
  5. Step 5: Solve for x
    x = 3,425,985,073.89/58,073.76
  6. Step 6: Final answer
    x = 58,993.68

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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.