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Finding the Fourth Proportional to 3,895,643.70, 5,843,465.55 and 2,551,950.90

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Solution

The fourth proportional to 3,895,643.70, 5,843,465.55 and 2,551,950.90 is: 3,827,926.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,895,643.70 : 5,843,465.55 = 2,551,950.90 : x
  2. Step 2: Convert to fraction form
    3,895,643.70/5,843,465.55 = 2,551,950.90/x
  3. Step 3: Cross multiply
    3,895,643.70x = 5,843,465.55 × 2,551,950.90
  4. Step 4: Simplify right side
    3,895,643.70x = 14,912,237,169,441.49
  5. Step 5: Solve for x
    x = 14,912,237,169,441.49/3,895,643.70
  6. Step 6: Final answer
    x = 3,827,926.35

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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.