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Finding the Fourth Proportional to 18,105,626.22, 24,985,265.91 and 9,956,864.22

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Solution

The fourth proportional to 18,105,626.22, 24,985,265.91 and 9,956,864.22 is: 13,740,198.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,105,626.22 : 24,985,265.91 = 9,956,864.22 : x
  2. Step 2: Convert to fraction form
    18,105,626.22/24,985,265.91 = 9,956,864.22/x
  3. Step 3: Cross multiply
    18,105,626.22x = 24,985,265.91 × 9,956,864.22
  4. Step 4: Simplify right side
    18,105,626.22x = 248,774,900,166,464.75
  5. Step 5: Solve for x
    x = 248,774,900,166,464.75/18,105,626.22
  6. Step 6: Final answer
    x = 13,740,198.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.