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Finding the Fourth Proportional to 37,418.61, 56,127.78 and 9,716.61

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Solution

The fourth proportional to 37,418.61, 56,127.78 and 9,716.61 is: 14,574.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,418.61 : 56,127.78 = 9,716.61 : x
  2. Step 2: Convert to fraction form
    37,418.61/56,127.78 = 9,716.61/x
  3. Step 3: Cross multiply
    37,418.61x = 56,127.78 × 9,716.61
  4. Step 4: Simplify right side
    37,418.61x = 545,371,748.43
  5. Step 5: Solve for x
    x = 545,371,748.43/37,418.61
  6. Step 6: Final answer
    x = 14,574.88

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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.