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Finding the Fourth Proportional to 66,629.84, 91,951.08 and 36,416.84

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Solution

The fourth proportional to 66,629.84, 91,951.08 and 36,416.84 is: 50,256.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,629.84 : 91,951.08 = 36,416.84 : x
  2. Step 2: Convert to fraction form
    66,629.84/91,951.08 = 36,416.84/x
  3. Step 3: Cross multiply
    66,629.84x = 91,951.08 × 36,416.84
  4. Step 4: Simplify right side
    66,629.84x = 3,348,567,768.19
  5. Step 5: Solve for x
    x = 3,348,567,768.19/66,629.84
  6. Step 6: Final answer
    x = 50,256.28

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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.