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Finding the Fourth Proportional to 68,372.03, 94,361.99 and 39,685.52

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Solution

The fourth proportional to 68,372.03, 94,361.99 and 39,685.52 is: 54,771.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,372.03 : 94,361.99 = 39,685.52 : x
  2. Step 2: Convert to fraction form
    68,372.03/94,361.99 = 39,685.52/x
  3. Step 3: Cross multiply
    68,372.03x = 94,361.99 × 39,685.52
  4. Step 4: Simplify right side
    68,372.03x = 3,744,804,641.38
  5. Step 5: Solve for x
    x = 3,744,804,641.38/68,372.03
  6. Step 6: Final answer
    x = 54,771.00

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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.