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Finding the Fourth Proportional to 18,695,462.65, 25,804,042.76 and 10,962,996.10

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Solution

The fourth proportional to 18,695,462.65, 25,804,042.76 and 10,962,996.10 is: 15,131,458.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,695,462.65 : 25,804,042.76 = 10,962,996.10 : x
  2. Step 2: Convert to fraction form
    18,695,462.65/25,804,042.76 = 10,962,996.10/x
  3. Step 3: Cross multiply
    18,695,462.65x = 25,804,042.76 × 10,962,996.10
  4. Step 4: Simplify right side
    18,695,462.65x = 282,889,620,105,010.62
  5. Step 5: Solve for x
    x = 282,889,620,105,010.62/18,695,462.65
  6. Step 6: Final answer
    x = 15,131,458.66

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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.