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Finding the Fourth Proportional to 66,498.98, 91,686.94 and 41,304.74

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Solution

The fourth proportional to 66,498.98, 91,686.94 and 41,304.74 is: 56,949.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,498.98 : 91,686.94 = 41,304.74 : x
  2. Step 2: Convert to fraction form
    66,498.98/91,686.94 = 41,304.74/x
  3. Step 3: Cross multiply
    66,498.98x = 91,686.94 × 41,304.74
  4. Step 4: Simplify right side
    66,498.98x = 3,787,104,656.40
  5. Step 5: Solve for x
    x = 3,787,104,656.40/66,498.98
  6. Step 6: Final answer
    x = 56,949.82

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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.