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Finding the Fourth Proportional to 28,460.51, 42,687.10 and 8,737.41

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Solution

The fourth proportional to 28,460.51, 42,687.10 and 8,737.41 is: 13,104.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,460.51 : 42,687.10 = 8,737.41 : x
  2. Step 2: Convert to fraction form
    28,460.51/42,687.10 = 8,737.41/x
  3. Step 3: Cross multiply
    28,460.51x = 42,687.10 × 8,737.41
  4. Step 4: Simplify right side
    28,460.51x = 372,974,694.41
  5. Step 5: Solve for x
    x = 372,974,694.41/28,460.51
  6. Step 6: Final answer
    x = 13,104.99

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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.