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Finding the Fourth Proportional to 21,967.67, 32,968.93 and 11,440.67

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Solution

The fourth proportional to 21,967.67, 32,968.93 and 11,440.67 is: 17,170.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,967.67 : 32,968.93 = 11,440.67 : x
  2. Step 2: Convert to fraction form
    21,967.67/32,968.93 = 11,440.67/x
  3. Step 3: Cross multiply
    21,967.67x = 32,968.93 × 11,440.67
  4. Step 4: Simplify right side
    21,967.67x = 377,186,648.38
  5. Step 5: Solve for x
    x = 377,186,648.38/21,967.67
  6. Step 6: Final answer
    x = 17,170.08

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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.