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Finding the Fourth Proportional to 7,893,466.88, 11,840,200.79 and 1,909,834.88

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Solution

The fourth proportional to 7,893,466.88, 11,840,200.79 and 1,909,834.88 is: 2,864,752.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,893,466.88 : 11,840,200.79 = 1,909,834.88 : x
  2. Step 2: Convert to fraction form
    7,893,466.88/11,840,200.79 = 1,909,834.88/x
  3. Step 3: Cross multiply
    7,893,466.88x = 11,840,200.79 × 1,909,834.88
  4. Step 4: Simplify right side
    7,893,466.88x = 22,612,828,386,195.38
  5. Step 5: Solve for x
    x = 22,612,828,386,195.38/7,893,466.88
  6. Step 6: Final answer
    x = 2,864,752.43

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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.