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Finding the Fourth Proportional to 16,388.67, 22,609.94 and 10,090.11

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Solution

The fourth proportional to 16,388.67, 22,609.94 and 10,090.11 is: 13,920.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,388.67 : 22,609.94 = 10,090.11 : x
  2. Step 2: Convert to fraction form
    16,388.67/22,609.94 = 10,090.11/x
  3. Step 3: Cross multiply
    16,388.67x = 22,609.94 × 10,090.11
  4. Step 4: Simplify right side
    16,388.67x = 228,136,781.69
  5. Step 5: Solve for x
    x = 228,136,781.69/16,388.67
  6. Step 6: Final answer
    x = 13,920.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.