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Finding the Fourth Proportional to 21,795.91, 32,695.04 and 7,003.69

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Solution

The fourth proportional to 21,795.91, 32,695.04 and 7,003.69 is: 10,505.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,795.91 : 32,695.04 = 7,003.69 : x
  2. Step 2: Convert to fraction form
    21,795.91/32,695.04 = 7,003.69/x
  3. Step 3: Cross multiply
    21,795.91x = 32,695.04 × 7,003.69
  4. Step 4: Simplify right side
    21,795.91x = 228,985,924.70
  5. Step 5: Solve for x
    x = 228,985,924.70/21,795.91
  6. Step 6: Final answer
    x = 10,505.91

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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.