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Finding the Fourth Proportional to 66,698.58, 92,040.60 and 36,478.02

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Solution

The fourth proportional to 66,698.58, 92,040.60 and 36,478.02 is: 50,337.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,698.58 : 92,040.60 = 36,478.02 : x
  2. Step 2: Convert to fraction form
    66,698.58/92,040.60 = 36,478.02/x
  3. Step 3: Cross multiply
    66,698.58x = 92,040.60 × 36,478.02
  4. Step 4: Simplify right side
    66,698.58x = 3,357,458,847.61
  5. Step 5: Solve for x
    x = 3,357,458,847.61/66,698.58
  6. Step 6: Final answer
    x = 50,337.79

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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.