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Finding the Fourth Proportional to 28,737.61, 43,101.51 and 7,956.25

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Solution

The fourth proportional to 28,737.61, 43,101.51 and 7,956.25 is: 11,933.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,737.61 : 43,101.51 = 7,956.25 : x
  2. Step 2: Convert to fraction form
    28,737.61/43,101.51 = 7,956.25/x
  3. Step 3: Cross multiply
    28,737.61x = 43,101.51 × 7,956.25
  4. Step 4: Simplify right side
    28,737.61x = 342,926,388.94
  5. Step 5: Solve for x
    x = 342,926,388.94/28,737.61
  6. Step 6: Final answer
    x = 11,933.02

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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.