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Finding the Fourth Proportional to 66,229.40, 91,394.91 and 36,014.10

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Solution

The fourth proportional to 66,229.40, 91,394.91 and 36,014.10 is: 49,698.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,229.40 : 91,394.91 = 36,014.10 : x
  2. Step 2: Convert to fraction form
    66,229.40/91,394.91 = 36,014.10/x
  3. Step 3: Cross multiply
    66,229.40x = 91,394.91 × 36,014.10
  4. Step 4: Simplify right side
    66,229.40x = 3,291,505,428.23
  5. Step 5: Solve for x
    x = 3,291,505,428.23/66,229.40
  6. Step 6: Final answer
    x = 49,698.56

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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.