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Finding the Fourth Proportional to 7,641,972.20, 11,462,958.30 and 7,348,039.40

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Solution

The fourth proportional to 7,641,972.20, 11,462,958.30 and 7,348,039.40 is: 11,022,059.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,641,972.20 : 11,462,958.30 = 7,348,039.40 : x
  2. Step 2: Convert to fraction form
    7,641,972.20/11,462,958.30 = 7,348,039.40/x
  3. Step 3: Cross multiply
    7,641,972.20x = 11,462,958.30 × 7,348,039.40
  4. Step 4: Simplify right side
    7,641,972.20x = 84,230,269,228,957.03
  5. Step 5: Solve for x
    x = 84,230,269,228,957.03/7,641,972.20
  6. Step 6: Final answer
    x = 11,022,059.10

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1.5x scale

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.