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Finding the Fourth Proportional to 11,378,991.10, 17,068,486.65 and 11,378,991.10

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Solution

The fourth proportional to 11,378,991.10, 17,068,486.65 and 11,378,991.10 is: 17,068,486.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,378,991.10 : 17,068,486.65 = 11,378,991.10 : x
  2. Step 2: Convert to fraction form
    11,378,991.10/17,068,486.65 = 11,378,991.10/x
  3. Step 3: Cross multiply
    11,378,991.10x = 17,068,486.65 × 11,378,991.10
  4. Step 4: Simplify right side
    11,378,991.10x = 194,222,157,680,818.78
  5. Step 5: Solve for x
    x = 194,222,157,680,818.78/11,378,991.10
  6. Step 6: Final answer
    x = 17,068,486.65

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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.