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Finding the Fourth Proportional to 38,598.80, 57,900.90 and 15,222.20

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Solution

The fourth proportional to 38,598.80, 57,900.90 and 15,222.20 is: 22,834.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,598.80 : 57,900.90 = 15,222.20 : x
  2. Step 2: Convert to fraction form
    38,598.80/57,900.90 = 15,222.20/x
  3. Step 3: Cross multiply
    38,598.80x = 57,900.90 × 15,222.20
  4. Step 4: Simplify right side
    38,598.80x = 881,379,079.98
  5. Step 5: Solve for x
    x = 881,379,079.98/38,598.80
  6. Step 6: Final answer
    x = 22,834.36

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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.