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Finding the Fourth Proportional to 18,386,314.80, 27,537,481.80 and 10,828,042.80

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Solution

The fourth proportional to 18,386,314.80, 27,537,481.80 and 10,828,042.80 is: 16,217,335.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,386,314.80 : 27,537,481.80 = 10,828,042.80 : x
  2. Step 2: Convert to fraction form
    18,386,314.80/27,537,481.80 = 10,828,042.80/x
  3. Step 3: Cross multiply
    18,386,314.80x = 27,537,481.80 × 10,828,042.80
  4. Step 4: Simplify right side
    18,386,314.80x = 298,177,031,534,621.06
  5. Step 5: Solve for x
    x = 298,177,031,534,621.06/18,386,314.80
  6. Step 6: Final answer
    x = 16,217,335.27

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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.