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Finding the Fourth Proportional to 3,669,961.45, 5,148,574.85 and 3,669,961.45

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Solution

The fourth proportional to 3,669,961.45, 5,148,574.85 and 3,669,961.45 is: 5,148,574.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,669,961.45 : 5,148,574.85 = 3,669,961.45 : x
  2. Step 2: Convert to fraction form
    3,669,961.45/5,148,574.85 = 3,669,961.45/x
  3. Step 3: Cross multiply
    3,669,961.45x = 5,148,574.85 × 3,669,961.45
  4. Step 4: Simplify right side
    3,669,961.45x = 18,895,071,221,939.53
  5. Step 5: Solve for x
    x = 18,895,071,221,939.53/3,669,961.45
  6. Step 6: Final answer
    x = 5,148,574.85

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.