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Finding the Fourth Proportional to 18,356,416.61, 27,537,761.83 and 7,567,819.85

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Solution

The fourth proportional to 18,356,416.61, 27,537,761.83 and 7,567,819.85 is: 11,353,023.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,356,416.61 : 27,537,761.83 = 7,567,819.85 : x
  2. Step 2: Convert to fraction form
    18,356,416.61/27,537,761.83 = 7,567,819.85/x
  3. Step 3: Cross multiply
    18,356,416.61x = 27,537,761.83 × 7,567,819.85
  4. Step 4: Simplify right side
    18,356,416.61x = 208,400,820,601,646.31
  5. Step 5: Solve for x
    x = 208,400,820,601,646.31/18,356,416.61
  6. Step 6: Final answer
    x = 11,353,023.03

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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.