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Finding the Fourth Proportional to 27,187,978.67, 37,522,605.41 and 15,268,751.11

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Solution

The fourth proportional to 27,187,978.67, 37,522,605.41 and 15,268,751.11 is: 21,072,670.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,187,978.67 : 37,522,605.41 = 15,268,751.11 : x
  2. Step 2: Convert to fraction form
    27,187,978.67/37,522,605.41 = 15,268,751.11/x
  3. Step 3: Cross multiply
    27,187,978.67x = 37,522,605.41 × 15,268,751.11
  4. Step 4: Simplify right side
    27,187,978.67x = 572,923,323,031,846.75
  5. Step 5: Solve for x
    x = 572,923,323,031,846.75/27,187,978.67
  6. Step 6: Final answer
    x = 21,072,670.76

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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.