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Finding the Fourth Proportional to 67,205.36, 92,742.68 and 36,990.03

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Solution

The fourth proportional to 67,205.36, 92,742.68 and 36,990.03 is: 51,045.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,205.36 : 92,742.68 = 36,990.03 : x
  2. Step 2: Convert to fraction form
    67,205.36/92,742.68 = 36,990.03/x
  3. Step 3: Cross multiply
    67,205.36x = 92,742.68 × 36,990.03
  4. Step 4: Simplify right side
    67,205.36x = 3,430,554,330.53
  5. Step 5: Solve for x
    x = 3,430,554,330.53/67,205.36
  6. Step 6: Final answer
    x = 51,045.85

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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.