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Finding the Fourth Proportional to 49,640.30, 74,460.45 and 29,957.30

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Solution

The fourth proportional to 49,640.30, 74,460.45 and 29,957.30 is: 44,935.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,640.30 : 74,460.45 = 29,957.30 : x
  2. Step 2: Convert to fraction form
    49,640.30/74,460.45 = 29,957.30/x
  3. Step 3: Cross multiply
    49,640.30x = 74,460.45 × 29,957.30
  4. Step 4: Simplify right side
    49,640.30x = 2,230,634,038.79
  5. Step 5: Solve for x
    x = 2,230,634,038.79/49,640.30
  6. Step 6: Final answer
    x = 44,935.95

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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.