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Finding the Fourth Proportional to 63,280, 94,935.87 and 18,906.58

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Solution

The fourth proportional to 63,280, 94,935.87 and 18,906.58 is: 28,364.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,280 : 94,935.87 = 18,906.58 : x
  2. Step 2: Convert to fraction form
    63,280/94,935.87 = 18,906.58/x
  3. Step 3: Cross multiply
    63,280x = 94,935.87 × 18,906.58
  4. Step 4: Simplify right side
    63,280x = 1,794,912,621.02
  5. Step 5: Solve for x
    x = 1,794,912,621.02/63,280
  6. Step 6: Final answer
    x = 28,364.61

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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.