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Finding the Fourth Proportional to 67,120.64, 92,662.08 and 41,978.24

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Solution

The fourth proportional to 67,120.64, 92,662.08 and 41,978.24 is: 57,952.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,120.64 : 92,662.08 = 41,978.24 : x
  2. Step 2: Convert to fraction form
    67,120.64/92,662.08 = 41,978.24/x
  3. Step 3: Cross multiply
    67,120.64x = 92,662.08 × 41,978.24
  4. Step 4: Simplify right side
    67,120.64x = 3,889,791,033.14
  5. Step 5: Solve for x
    x = 3,889,791,033.14/67,120.64
  6. Step 6: Final answer
    x = 57,952.23

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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.