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Finding the Fourth Proportional to 5,391,741.70, 8,087,612.55 and 2,557,389.70

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Solution

The fourth proportional to 5,391,741.70, 8,087,612.55 and 2,557,389.70 is: 3,836,084.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,391,741.70 : 8,087,612.55 = 2,557,389.70 : x
  2. Step 2: Convert to fraction form
    5,391,741.70/8,087,612.55 = 2,557,389.70/x
  3. Step 3: Cross multiply
    5,391,741.70x = 8,087,612.55 × 2,557,389.70
  4. Step 4: Simplify right side
    5,391,741.70x = 20,683,177,032,960.73
  5. Step 5: Solve for x
    x = 20,683,177,032,960.73/5,391,741.70
  6. Step 6: Final answer
    x = 3,836,084.55

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Similar ratio
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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.