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Finding the Fourth Proportional to 9,659,640.60, 14,489,460.90 and 2,927,179.80

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Solution

The fourth proportional to 9,659,640.60, 14,489,460.90 and 2,927,179.80 is: 4,390,769.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,659,640.60 : 14,489,460.90 = 2,927,179.80 : x
  2. Step 2: Convert to fraction form
    9,659,640.60/14,489,460.90 = 2,927,179.80/x
  3. Step 3: Cross multiply
    9,659,640.60x = 14,489,460.90 × 2,927,179.80
  4. Step 4: Simplify right side
    9,659,640.60x = 42,413,257,259,369.82
  5. Step 5: Solve for x
    x = 42,413,257,259,369.82/9,659,640.60
  6. Step 6: Final answer
    x = 4,390,769.70

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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.