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Finding the Fourth Proportional to 66,959.60, 92,405.20 and 36,744.40

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Solution

The fourth proportional to 66,959.60, 92,405.20 and 36,744.40 is: 50,707.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,959.60 : 92,405.20 = 36,744.40 : x
  2. Step 2: Convert to fraction form
    66,959.60/92,405.20 = 36,744.40/x
  3. Step 3: Cross multiply
    66,959.60x = 92,405.20 × 36,744.40
  4. Step 4: Simplify right side
    66,959.60x = 3,395,373,630.88
  5. Step 5: Solve for x
    x = 3,395,373,630.88/66,959.60
  6. Step 6: Final answer
    x = 50,707.79

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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.