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Finding the Fourth Proportional to 27,652,993.60, 41,479,490.40 and 20,785,230.40

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Solution

The fourth proportional to 27,652,993.60, 41,479,490.40 and 20,785,230.40 is: 31,177,845.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,652,993.60 : 41,479,490.40 = 20,785,230.40 : x
  2. Step 2: Convert to fraction form
    27,652,993.60/41,479,490.40 = 20,785,230.40/x
  3. Step 3: Cross multiply
    27,652,993.60x = 41,479,490.40 × 20,785,230.40
  4. Step 4: Simplify right side
    27,652,993.60x = 862,160,764,838,588.12
  5. Step 5: Solve for x
    x = 862,160,764,838,588.12/27,652,993.60
  6. Step 6: Final answer
    x = 31,177,845.60

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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.