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Finding the Fourth Proportional to 11,869,712.10, 17,804,568.15 and 10,771,400.70

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Solution

The fourth proportional to 11,869,712.10, 17,804,568.15 and 10,771,400.70 is: 16,157,101.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,869,712.10 : 17,804,568.15 = 10,771,400.70 : x
  2. Step 2: Convert to fraction form
    11,869,712.10/17,804,568.15 = 10,771,400.70/x
  3. Step 3: Cross multiply
    11,869,712.10x = 17,804,568.15 × 10,771,400.70
  4. Step 4: Simplify right side
    11,869,712.10x = 191,780,137,834,107.69
  5. Step 5: Solve for x
    x = 191,780,137,834,107.69/11,869,712.10
  6. Step 6: Final answer
    x = 16,157,101.05

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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.