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Finding the Fourth Proportional to 9,999,375.68, 14,995,967.86 and 3,608,819.12

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Solution

The fourth proportional to 9,999,375.68, 14,995,967.86 and 3,608,819.12 is: 5,412,111.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,999,375.68 : 14,995,967.86 = 3,608,819.12 : x
  2. Step 2: Convert to fraction form
    9,999,375.68/14,995,967.86 = 3,608,819.12/x
  3. Step 3: Cross multiply
    9,999,375.68x = 14,995,967.86 × 3,608,819.12
  4. Step 4: Simplify right side
    9,999,375.68x = 54,117,735,536,073.48
  5. Step 5: Solve for x
    x = 54,117,735,536,073.48/9,999,375.68
  6. Step 6: Final answer
    x = 5,412,111.44

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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.