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Finding the Fourth Proportional to 72,685.84, 109,028.76 and 22,766.35

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Solution

The fourth proportional to 72,685.84, 109,028.76 and 22,766.35 is: 34,149.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,685.84 : 109,028.76 = 22,766.35 : x
  2. Step 2: Convert to fraction form
    72,685.84/109,028.76 = 22,766.35/x
  3. Step 3: Cross multiply
    72,685.84x = 109,028.76 × 22,766.35
  4. Step 4: Simplify right side
    72,685.84x = 2,482,186,910.23
  5. Step 5: Solve for x
    x = 2,482,186,910.23/72,685.84
  6. Step 6: Final answer
    x = 34,149.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.