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Finding the Fourth Proportional to 9,771,681.21, 14,659,773.65 and 3,381,933.64

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Solution

The fourth proportional to 9,771,681.21, 14,659,773.65 and 3,381,933.64 is: 5,073,679.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,771,681.21 : 14,659,773.65 = 3,381,933.64 : x
  2. Step 2: Convert to fraction form
    9,771,681.21/14,659,773.65 = 3,381,933.64/x
  3. Step 3: Cross multiply
    9,771,681.21x = 14,659,773.65 × 3,381,933.64
  4. Step 4: Simplify right side
    9,771,681.21x = 49,578,381,571,512.05
  5. Step 5: Solve for x
    x = 49,578,381,571,512.05/9,771,681.21
  6. Step 6: Final answer
    x = 5,073,679.80

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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.