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Finding the Fourth Proportional to 60,369.26, 90,516.95 and 28,788.98

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Solution

The fourth proportional to 60,369.26, 90,516.95 and 28,788.98 is: 43,165.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,369.26 : 90,516.95 = 28,788.98 : x
  2. Step 2: Convert to fraction form
    60,369.26/90,516.95 = 28,788.98/x
  3. Step 3: Cross multiply
    60,369.26x = 90,516.95 × 28,788.98
  4. Step 4: Simplify right side
    60,369.26x = 2,605,890,066.68
  5. Step 5: Solve for x
    x = 2,605,890,066.68/60,369.26
  6. Step 6: Final answer
    x = 43,165.85

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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.