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Finding the Fourth Proportional to 17,609,621.60, 26,422,305.60 and 6,258,216.80

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Solution

The fourth proportional to 17,609,621.60, 26,422,305.60 and 6,258,216.80 is: 9,390,123.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,609,621.60 : 26,422,305.60 = 6,258,216.80 : x
  2. Step 2: Convert to fraction form
    17,609,621.60/26,422,305.60 = 6,258,216.80/x
  3. Step 3: Cross multiply
    17,609,621.60x = 26,422,305.60 × 6,258,216.80
  4. Step 4: Simplify right side
    17,609,621.60x = 165,356,516,800,654.09
  5. Step 5: Solve for x
    x = 165,356,516,800,654.09/17,609,621.60
  6. Step 6: Final answer
    x = 9,390,123.23

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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.