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Finding the Fourth Proportional to 6,937,278.40, 10,405,917.60 and 6,937,278.40

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Solution

The fourth proportional to 6,937,278.40, 10,405,917.60 and 6,937,278.40 is: 10,405,917.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,937,278.40 : 10,405,917.60 = 6,937,278.40 : x
  2. Step 2: Convert to fraction form
    6,937,278.40/10,405,917.60 = 6,937,278.40/x
  3. Step 3: Cross multiply
    6,937,278.40x = 10,405,917.60 × 6,937,278.40
  4. Step 4: Simplify right side
    6,937,278.40x = 72,188,747,398,659.84
  5. Step 5: Solve for x
    x = 72,188,747,398,659.84/6,937,278.40
  6. Step 6: Final answer
    x = 10,405,917.60

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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.