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Finding the Fourth Proportional to 67,393.32, 92,973.18 and 40,520.28

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Solution

The fourth proportional to 67,393.32, 92,973.18 and 40,520.28 is: 55,900.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,393.32 : 92,973.18 = 40,520.28 : x
  2. Step 2: Convert to fraction form
    67,393.32/92,973.18 = 40,520.28/x
  3. Step 3: Cross multiply
    67,393.32x = 92,973.18 × 40,520.28
  4. Step 4: Simplify right side
    67,393.32x = 3,767,299,286.09
  5. Step 5: Solve for x
    x = 3,767,299,286.09/67,393.32
  6. Step 6: Final answer
    x = 55,900.19

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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.