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Finding the Fourth Proportional to 38,333.80, 57,500.70 and 12,041.20

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Solution

The fourth proportional to 38,333.80, 57,500.70 and 12,041.20 is: 18,061.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,333.80 : 57,500.70 = 12,041.20 : x
  2. Step 2: Convert to fraction form
    38,333.80/57,500.70 = 12,041.20/x
  3. Step 3: Cross multiply
    38,333.80x = 57,500.70 × 12,041.20
  4. Step 4: Simplify right side
    38,333.80x = 692,377,428.84
  5. Step 5: Solve for x
    x = 692,377,428.84/38,333.80
  6. Step 6: Final answer
    x = 18,061.80

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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.