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Finding the Fourth Proportional to 66,475.69, 91,734.78 and 36,261.70

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Solution

The fourth proportional to 66,475.69, 91,734.78 and 36,261.70 is: 50,040.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,475.69 : 91,734.78 = 36,261.70 : x
  2. Step 2: Convert to fraction form
    66,475.69/91,734.78 = 36,261.70/x
  3. Step 3: Cross multiply
    66,475.69x = 91,734.78 × 36,261.70
  4. Step 4: Simplify right side
    66,475.69x = 3,326,459,071.93
  5. Step 5: Solve for x
    x = 3,326,459,071.93/66,475.69
  6. Step 6: Final answer
    x = 50,040.23

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1.5x scale

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.