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Finding the Fourth Proportional to 66,540.25, 91,820.03 and 37,852.28

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Solution

The fourth proportional to 66,540.25, 91,820.03 and 37,852.28 is: 52,233.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,540.25 : 91,820.03 = 37,852.28 : x
  2. Step 2: Convert to fraction form
    66,540.25/91,820.03 = 37,852.28/x
  3. Step 3: Cross multiply
    66,540.25x = 91,820.03 × 37,852.28
  4. Step 4: Simplify right side
    66,540.25x = 3,475,597,394.05
  5. Step 5: Solve for x
    x = 3,475,597,394.05/66,540.25
  6. Step 6: Final answer
    x = 52,233.01

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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.