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Finding the Fourth Proportional to 9,969,144.30, 14,953,716.45 and 8,374,821.30

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Solution

The fourth proportional to 9,969,144.30, 14,953,716.45 and 8,374,821.30 is: 12,562,231.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,969,144.30 : 14,953,716.45 = 8,374,821.30 : x
  2. Step 2: Convert to fraction form
    9,969,144.30/14,953,716.45 = 8,374,821.30/x
  3. Step 3: Cross multiply
    9,969,144.30x = 14,953,716.45 × 8,374,821.30
  4. Step 4: Simplify right side
    9,969,144.30x = 125,234,703,039,620.38
  5. Step 5: Solve for x
    x = 125,234,703,039,620.38/9,969,144.30
  6. Step 6: Final answer
    x = 12,562,231.95

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Double scale
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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.