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Finding the Fourth Proportional to 32,807,872.40, 49,211,808.60 and 20,053,288.40

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Solution

The fourth proportional to 32,807,872.40, 49,211,808.60 and 20,053,288.40 is: 30,079,932.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,807,872.40 : 49,211,808.60 = 20,053,288.40 : x
  2. Step 2: Convert to fraction form
    32,807,872.40/49,211,808.60 = 20,053,288.40/x
  3. Step 3: Cross multiply
    32,807,872.40x = 49,211,808.60 × 20,053,288.40
  4. Step 4: Simplify right side
    32,807,872.40x = 986,858,590,541,400.25
  5. Step 5: Solve for x
    x = 986,858,590,541,400.25/32,807,872.40
  6. Step 6: Final answer
    x = 30,079,932.60

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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.