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Finding the Fourth Proportional to 37,390.91, 51,598.67 and 20,623.91

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Solution

The fourth proportional to 37,390.91, 51,598.67 and 20,623.91 is: 28,460.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,390.91 : 51,598.67 = 20,623.91 : x
  2. Step 2: Convert to fraction form
    37,390.91/51,598.67 = 20,623.91/x
  3. Step 3: Cross multiply
    37,390.91x = 51,598.67 × 20,623.91
  4. Step 4: Simplify right side
    37,390.91x = 1,064,165,965.09
  5. Step 5: Solve for x
    x = 1,064,165,965.09/37,390.91
  6. Step 6: Final answer
    x = 28,460.56

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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.