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Finding the Fourth Proportional to 66,740.49, 92,101.86 and 36,525.87

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Solution

The fourth proportional to 66,740.49, 92,101.86 and 36,525.87 is: 50,405.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,740.49 : 92,101.86 = 36,525.87 : x
  2. Step 2: Convert to fraction form
    66,740.49/92,101.86 = 36,525.87/x
  3. Step 3: Cross multiply
    66,740.49x = 92,101.86 × 36,525.87
  4. Step 4: Simplify right side
    66,740.49x = 3,364,100,565.12
  5. Step 5: Solve for x
    x = 3,364,100,565.12/66,740.49
  6. Step 6: Final answer
    x = 50,405.69

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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.