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Finding the Fourth Proportional to 61,850.82, 92,704.51 and 28,500.83

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Solution

The fourth proportional to 61,850.82, 92,704.51 and 28,500.83 is: 42,718.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,850.82 : 92,704.51 = 28,500.83 : x
  2. Step 2: Convert to fraction form
    61,850.82/92,704.51 = 28,500.83/x
  3. Step 3: Cross multiply
    61,850.82x = 92,704.51 × 28,500.83
  4. Step 4: Simplify right side
    61,850.82x = 2,642,154,873.72
  5. Step 5: Solve for x
    x = 2,642,154,873.72/61,850.82
  6. Step 6: Final answer
    x = 42,718.19

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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.