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Finding the Fourth Proportional to 67,361.91, 92,959.40 and 38,683.45

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Solution

The fourth proportional to 67,361.91, 92,959.40 and 38,683.45 is: 53,383.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,361.91 : 92,959.40 = 38,683.45 : x
  2. Step 2: Convert to fraction form
    67,361.91/92,959.40 = 38,683.45/x
  3. Step 3: Cross multiply
    67,361.91x = 92,959.40 × 38,683.45
  4. Step 4: Simplify right side
    67,361.91x = 3,595,989,643.72
  5. Step 5: Solve for x
    x = 3,595,989,643.72/67,361.91
  6. Step 6: Final answer
    x = 53,383.13

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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.