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Finding the Fourth Proportional to 6,643,062.15, 9,964,593.23 and 1,851,490.95

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Solution

The fourth proportional to 6,643,062.15, 9,964,593.23 and 1,851,490.95 is: 2,777,236.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,643,062.15 : 9,964,593.23 = 1,851,490.95 : x
  2. Step 2: Convert to fraction form
    6,643,062.15/9,964,593.23 = 1,851,490.95/x
  3. Step 3: Cross multiply
    6,643,062.15x = 9,964,593.23 × 1,851,490.95
  4. Step 4: Simplify right side
    6,643,062.15x = 18,449,354,176,518.81
  5. Step 5: Solve for x
    x = 18,449,354,176,518.81/6,643,062.15
  6. Step 6: Final answer
    x = 2,777,236.43

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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.