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Finding the Fourth Proportional to 66,274.72, 91,459.50 and 36,060.25

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Solution

The fourth proportional to 66,274.72, 91,459.50 and 36,060.25 is: 49,763.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,274.72 : 91,459.50 = 36,060.25 : x
  2. Step 2: Convert to fraction form
    66,274.72/91,459.50 = 36,060.25/x
  3. Step 3: Cross multiply
    66,274.72x = 91,459.50 × 36,060.25
  4. Step 4: Simplify right side
    66,274.72x = 3,298,052,684.43
  5. Step 5: Solve for x
    x = 3,298,052,684.43/66,274.72
  6. Step 6: Final answer
    x = 49,763.36

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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.