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Finding the Fourth Proportional to 9,969,672.70, 14,954,509.05 and 9,906,687.10

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Solution

The fourth proportional to 9,969,672.70, 14,954,509.05 and 9,906,687.10 is: 14,860,030.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,969,672.70 : 14,954,509.05 = 9,906,687.10 : x
  2. Step 2: Convert to fraction form
    9,969,672.70/14,954,509.05 = 9,906,687.10/x
  3. Step 3: Cross multiply
    9,969,672.70x = 14,954,509.05 × 9,906,687.10
  4. Step 4: Simplify right side
    9,969,672.70x = 148,149,641,892,468.25
  5. Step 5: Solve for x
    x = 148,149,641,892,468.25/9,969,672.70
  6. Step 6: Final answer
    x = 14,860,030.65

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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.