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Finding the Fourth Proportional to 21,777.44, 32,663.08 and 6,984.44

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Solution

The fourth proportional to 21,777.44, 32,663.08 and 6,984.44 is: 10,475.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,777.44 : 32,663.08 = 6,984.44 : x
  2. Step 2: Convert to fraction form
    21,777.44/32,663.08 = 6,984.44/x
  3. Step 3: Cross multiply
    21,777.44x = 32,663.08 × 6,984.44
  4. Step 4: Simplify right side
    21,777.44x = 228,133,176.62
  5. Step 5: Solve for x
    x = 228,133,176.62/21,777.44
  6. Step 6: Final answer
    x = 10,475.67

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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.