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Finding the Fourth Proportional to 7,641,968.70, 11,462,953.05 and 7,348,035.90

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Solution

The fourth proportional to 7,641,968.70, 11,462,953.05 and 7,348,035.90 is: 11,022,053.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,641,968.70 : 11,462,953.05 = 7,348,035.90 : x
  2. Step 2: Convert to fraction form
    7,641,968.70/11,462,953.05 = 7,348,035.90/x
  3. Step 3: Cross multiply
    7,641,968.70x = 11,462,953.05 × 7,348,035.90
  4. Step 4: Simplify right side
    7,641,968.70x = 84,230,190,531,414.50
  5. Step 5: Solve for x
    x = 84,230,190,531,414.50/7,641,968.70
  6. Step 6: Final answer
    x = 11,022,053.85

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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.