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Finding the Fourth Proportional to 29,685.03, 40,965.03 and 16,072.84

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Solution

The fourth proportional to 29,685.03, 40,965.03 and 16,072.84 is: 22,180.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,685.03 : 40,965.03 = 16,072.84 : x
  2. Step 2: Convert to fraction form
    29,685.03/40,965.03 = 16,072.84/x
  3. Step 3: Cross multiply
    29,685.03x = 40,965.03 × 16,072.84
  4. Step 4: Simplify right side
    29,685.03x = 658,424,247.04
  5. Step 5: Solve for x
    x = 658,424,247.04/29,685.03
  6. Step 6: Final answer
    x = 22,180.35

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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.