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Finding the Fourth Proportional to 16,387,651.20, 24,582,643.20 and 5,028,081.60

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Solution

The fourth proportional to 16,387,651.20, 24,582,643.20 and 5,028,081.60 is: 7,542,480.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,387,651.20 : 24,582,643.20 = 5,028,081.60 : x
  2. Step 2: Convert to fraction form
    16,387,651.20/24,582,643.20 = 5,028,081.60/x
  3. Step 3: Cross multiply
    16,387,651.20x = 24,582,643.20 × 5,028,081.60
  4. Step 4: Simplify right side
    16,387,651.20x = 123,603,535,953,285.11
  5. Step 5: Solve for x
    x = 123,603,535,953,285.11/16,387,651.20
  6. Step 6: Final answer
    x = 7,542,480.28

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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.