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Finding the Fourth Proportional to 38,396.48, 57,595.20 and 13,772.48

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Solution

The fourth proportional to 38,396.48, 57,595.20 and 13,772.48 is: 20,658.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,396.48 : 57,595.20 = 13,772.48 : x
  2. Step 2: Convert to fraction form
    38,396.48/57,595.20 = 13,772.48/x
  3. Step 3: Cross multiply
    38,396.48x = 57,595.20 × 13,772.48
  4. Step 4: Simplify right side
    38,396.48x = 793,228,740.10
  5. Step 5: Solve for x
    x = 793,228,740.10/38,396.48
  6. Step 6: Final answer
    x = 20,658.89

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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.