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Finding the Fourth Proportional to 38,311.99, 57,468.03 and 10,609.99

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Solution

The fourth proportional to 38,311.99, 57,468.03 and 10,609.99 is: 15,915.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,311.99 : 57,468.03 = 10,609.99 : x
  2. Step 2: Convert to fraction form
    38,311.99/57,468.03 = 10,609.99/x
  3. Step 3: Cross multiply
    38,311.99x = 57,468.03 × 10,609.99
  4. Step 4: Simplify right side
    38,311.99x = 609,735,223.62
  5. Step 5: Solve for x
    x = 609,735,223.62/38,311.99
  6. Step 6: Final answer
    x = 15,915.00

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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.