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Finding the Fourth Proportional to 22,668.96, 34,009.21 and 13,316.90

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Solution

The fourth proportional to 22,668.96, 34,009.21 and 13,316.90 is: 19,978.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,668.96 : 34,009.21 = 13,316.90 : x
  2. Step 2: Convert to fraction form
    22,668.96/34,009.21 = 13,316.90/x
  3. Step 3: Cross multiply
    22,668.96x = 34,009.21 × 13,316.90
  4. Step 4: Simplify right side
    22,668.96x = 452,897,095.25
  5. Step 5: Solve for x
    x = 452,897,095.25/22,668.96
  6. Step 6: Final answer
    x = 19,978.73

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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.