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Finding the Fourth Proportional to 49,774.40, 74,661.60 and 18,605.60

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Solution

The fourth proportional to 49,774.40, 74,661.60 and 18,605.60 is: 27,908.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,774.40 : 74,661.60 = 18,605.60 : x
  2. Step 2: Convert to fraction form
    49,774.40/74,661.60 = 18,605.60/x
  3. Step 3: Cross multiply
    49,774.40x = 74,661.60 × 18,605.60
  4. Step 4: Simplify right side
    49,774.40x = 1,389,123,864.96
  5. Step 5: Solve for x
    x = 1,389,123,864.96/49,774.40
  6. Step 6: Final answer
    x = 27,908.40

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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.