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Finding the Fourth Proportional to 74,404.20, 111,606.30 and 27,647.40

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Solution

The fourth proportional to 74,404.20, 111,606.30 and 27,647.40 is: 41,471.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,404.20 : 111,606.30 = 27,647.40 : x
  2. Step 2: Convert to fraction form
    74,404.20/111,606.30 = 27,647.40/x
  3. Step 3: Cross multiply
    74,404.20x = 111,606.30 × 27,647.40
  4. Step 4: Simplify right side
    74,404.20x = 3,085,624,018.62
  5. Step 5: Solve for x
    x = 3,085,624,018.62/74,404.20
  6. Step 6: Final answer
    x = 41,471.10

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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.