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Finding the Fourth Proportional to 20,061.70, 30,056.10 and 16,343.80

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Solution

The fourth proportional to 20,061.70, 30,056.10 and 16,343.80 is: 24,486.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,061.70 : 30,056.10 = 16,343.80 : x
  2. Step 2: Convert to fraction form
    20,061.70/30,056.10 = 16,343.80/x
  3. Step 3: Cross multiply
    20,061.70x = 30,056.10 × 16,343.80
  4. Step 4: Simplify right side
    20,061.70x = 491,230,887.18
  5. Step 5: Solve for x
    x = 491,230,887.18/20,061.70
  6. Step 6: Final answer
    x = 24,486.01

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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.