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Finding the Fourth Proportional to 9,783,212.80, 14,676,892.80 and 2,959,225.60

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Solution

The fourth proportional to 9,783,212.80, 14,676,892.80 and 2,959,225.60 is: 4,439,465.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,783,212.80 : 14,676,892.80 = 2,959,225.60 : x
  2. Step 2: Convert to fraction form
    9,783,212.80/14,676,892.80 = 2,959,225.60/x
  3. Step 3: Cross multiply
    9,783,212.80x = 14,676,892.80 × 2,959,225.60
  4. Step 4: Simplify right side
    9,783,212.80x = 43,432,236,902,215.68
  5. Step 5: Solve for x
    x = 43,432,236,902,215.68/9,783,212.80
  6. Step 6: Final answer
    x = 4,439,465.62

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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.