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Finding the Fourth Proportional to 67,210.40, 92,745.96 and 36,989.84

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Solution

The fourth proportional to 67,210.40, 92,745.96 and 36,989.84 is: 51,043.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,210.40 : 92,745.96 = 36,989.84 : x
  2. Step 2: Convert to fraction form
    67,210.40/92,745.96 = 36,989.84/x
  3. Step 3: Cross multiply
    67,210.40x = 92,745.96 × 36,989.84
  4. Step 4: Simplify right side
    67,210.40x = 3,430,658,221.05
  5. Step 5: Solve for x
    x = 3,430,658,221.05/67,210.40
  6. Step 6: Final answer
    x = 51,043.56

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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.