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Finding the Fourth Proportional to 15,887,999.20, 23,784,759.60 and 15,887,999.20

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Solution

The fourth proportional to 15,887,999.20, 23,784,759.60 and 15,887,999.20 is: 23,784,759.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,887,999.20 : 23,784,759.60 = 15,887,999.20 : x
  2. Step 2: Convert to fraction form
    15,887,999.20/23,784,759.60 = 15,887,999.20/x
  3. Step 3: Cross multiply
    15,887,999.20x = 23,784,759.60 × 15,887,999.20
  4. Step 4: Simplify right side
    15,887,999.20x = 377,892,241,496,992.31
  5. Step 5: Solve for x
    x = 377,892,241,496,992.31/15,887,999.20
  6. Step 6: Final answer
    x = 23,784,759.60

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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.