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Finding the Fourth Proportional to 49,866.62, 74,800.14 and 12,426.68

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Solution

The fourth proportional to 49,866.62, 74,800.14 and 12,426.68 is: 18,640.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,866.62 : 74,800.14 = 12,426.68 : x
  2. Step 2: Convert to fraction form
    49,866.62/74,800.14 = 12,426.68/x
  3. Step 3: Cross multiply
    49,866.62x = 74,800.14 × 12,426.68
  4. Step 4: Simplify right side
    49,866.62x = 929,517,403.74
  5. Step 5: Solve for x
    x = 929,517,403.74/49,866.62
  6. Step 6: Final answer
    x = 18,640.07

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1.5x scale

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.