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Finding the Fourth Proportional to 10,928,728.70, 16,393,093.05 and 3,354,710.30

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Solution

The fourth proportional to 10,928,728.70, 16,393,093.05 and 3,354,710.30 is: 5,032,065.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,928,728.70 : 16,393,093.05 = 3,354,710.30 : x
  2. Step 2: Convert to fraction form
    10,928,728.70/16,393,093.05 = 3,354,710.30/x
  3. Step 3: Cross multiply
    10,928,728.70x = 16,393,093.05 × 3,354,710.30
  4. Step 4: Simplify right side
    10,928,728.70x = 54,994,078,103,693.41
  5. Step 5: Solve for x
    x = 54,994,078,103,693.41/10,928,728.70
  6. Step 6: Final answer
    x = 5,032,065.45

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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.