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Finding the Fourth Proportional to 6,655,956.66, 9,983,964.24 and 2,107,027.80

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Solution

The fourth proportional to 6,655,956.66, 9,983,964.24 and 2,107,027.80 is: 3,160,550.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,655,956.66 : 9,983,964.24 = 2,107,027.80 : x
  2. Step 2: Convert to fraction form
    6,655,956.66/9,983,964.24 = 2,107,027.80/x
  3. Step 3: Cross multiply
    6,655,956.66x = 9,983,964.24 × 2,107,027.80
  4. Step 4: Simplify right side
    6,655,956.66x = 21,036,490,207,885.87
  5. Step 5: Solve for x
    x = 21,036,490,207,885.87/6,655,956.66
  6. Step 6: Final answer
    x = 3,160,550.96

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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.