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Finding the Fourth Proportional to 67,936, 101,283.85 and 66,209.58

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Solution

The fourth proportional to 67,936, 101,283.85 and 66,209.58 is: 98,709.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,936 : 101,283.85 = 66,209.58 : x
  2. Step 2: Convert to fraction form
    67,936/101,283.85 = 66,209.58/x
  3. Step 3: Cross multiply
    67,936x = 101,283.85 × 66,209.58
  4. Step 4: Simplify right side
    67,936x = 6,705,961,169.28
  5. Step 5: Solve for x
    x = 6,705,961,169.28/67,936
  6. Step 6: Final answer
    x = 98,709.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.