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Finding the Fourth Proportional to 10,616,472.05, 15,936,681.90 and 7,029,245.30

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Solution

The fourth proportional to 10,616,472.05, 15,936,681.90 and 7,029,245.30 is: 10,551,795.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,616,472.05 : 15,936,681.90 = 7,029,245.30 : x
  2. Step 2: Convert to fraction form
    10,616,472.05/15,936,681.90 = 7,029,245.30/x
  3. Step 3: Cross multiply
    10,616,472.05x = 15,936,681.90 × 7,029,245.30
  4. Step 4: Simplify right side
    10,616,472.05x = 112,022,846,343,170.06
  5. Step 5: Solve for x
    x = 112,022,846,343,170.06/10,616,472.05
  6. Step 6: Final answer
    x = 10,551,795.91

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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.