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Finding the Fourth Proportional to 6,493,641.76, 8,961,087.32 and 3,553,447.22

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Solution

The fourth proportional to 6,493,641.76, 8,961,087.32 and 3,553,447.22 is: 4,903,681.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,493,641.76 : 8,961,087.32 = 3,553,447.22 : x
  2. Step 2: Convert to fraction form
    6,493,641.76/8,961,087.32 = 3,553,447.22/x
  3. Step 3: Cross multiply
    6,493,641.76x = 8,961,087.32 × 3,553,447.22
  4. Step 4: Simplify right side
    6,493,641.76x = 31,842,750,825,431.25
  5. Step 5: Solve for x
    x = 31,842,750,825,431.25/6,493,641.76
  6. Step 6: Final answer
    x = 4,903,681.48

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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.