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Finding the Fourth Proportional to 6,787,916.50, 9,366,978 and 3,731,540.26

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Solution

The fourth proportional to 6,787,916.50, 9,366,978 and 3,731,540.26 is: 5,149,334.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,787,916.50 : 9,366,978 = 3,731,540.26 : x
  2. Step 2: Convert to fraction form
    6,787,916.50/9,366,978 = 3,731,540.26/x
  3. Step 3: Cross multiply
    6,787,916.50x = 9,366,978 × 3,731,540.26
  4. Step 4: Simplify right side
    6,787,916.50x = 34,953,255,521,534.28
  5. Step 5: Solve for x
    x = 34,953,255,521,534.28/6,787,916.50
  6. Step 6: Final answer
    x = 5,149,334.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.