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Finding the Fourth Proportional to 6,691,481.84, 9,234,328.92 and 3,635,747.12

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Solution

The fourth proportional to 6,691,481.84, 9,234,328.92 and 3,635,747.12 is: 5,017,376.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,691,481.84 : 9,234,328.92 = 3,635,747.12 : x
  2. Step 2: Convert to fraction form
    6,691,481.84/9,234,328.92 = 3,635,747.12/x
  3. Step 3: Cross multiply
    6,691,481.84x = 9,234,328.92 × 3,635,747.12
  4. Step 4: Simplify right side
    6,691,481.84x = 33,573,684,776,022.71
  5. Step 5: Solve for x
    x = 33,573,684,776,022.71/6,691,481.84
  6. Step 6: Final answer
    x = 5,017,376.66

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.