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Finding the Fourth Proportional to 7,176,978.68, 10,757,321.24 and 6,310,737.14

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Solution

The fourth proportional to 7,176,978.68, 10,757,321.24 and 6,310,737.14 is: 9,458,942.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,176,978.68 : 10,757,321.24 = 6,310,737.14 : x
  2. Step 2: Convert to fraction form
    7,176,978.68/10,757,321.24 = 6,310,737.14/x
  3. Step 3: Cross multiply
    7,176,978.68x = 10,757,321.24 × 6,310,737.14
  4. Step 4: Simplify right side
    7,176,978.68x = 67,886,626,590,838.55
  5. Step 5: Solve for x
    x = 67,886,626,590,838.55/7,176,978.68
  6. Step 6: Final answer
    x = 9,458,942.22

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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.