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Finding the Fourth Proportional to 63,009.72, 94,521.87 and 20,893.50

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Solution

The fourth proportional to 63,009.72, 94,521.87 and 20,893.50 is: 31,342.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,009.72 : 94,521.87 = 20,893.50 : x
  2. Step 2: Convert to fraction form
    63,009.72/94,521.87 = 20,893.50/x
  3. Step 3: Cross multiply
    63,009.72x = 94,521.87 × 20,893.50
  4. Step 4: Simplify right side
    63,009.72x = 1,974,892,690.85
  5. Step 5: Solve for x
    x = 1,974,892,690.85/63,009.72
  6. Step 6: Final answer
    x = 31,342.67

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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.