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Finding the Fourth Proportional to 67,361.46, 92,965.08 and 38,685.12

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Solution

The fourth proportional to 67,361.46, 92,965.08 and 38,685.12 is: 53,389.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,361.46 : 92,965.08 = 38,685.12 : x
  2. Step 2: Convert to fraction form
    67,361.46/92,965.08 = 38,685.12/x
  3. Step 3: Cross multiply
    67,361.46x = 92,965.08 × 38,685.12
  4. Step 4: Simplify right side
    67,361.46x = 3,596,365,275.61
  5. Step 5: Solve for x
    x = 3,596,365,275.61/67,361.46
  6. Step 6: Final answer
    x = 53,389.06

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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.