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Finding the Fourth Proportional to 21,863.01, 32,796.95 and 6,280.64

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Solution

The fourth proportional to 21,863.01, 32,796.95 and 6,280.64 is: 9,421.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,863.01 : 32,796.95 = 6,280.64 : x
  2. Step 2: Convert to fraction form
    21,863.01/32,796.95 = 6,280.64/x
  3. Step 3: Cross multiply
    21,863.01x = 32,796.95 × 6,280.64
  4. Step 4: Simplify right side
    21,863.01x = 205,985,798.98
  5. Step 5: Solve for x
    x = 205,985,798.98/21,863.01
  6. Step 6: Final answer
    x = 9,421.66

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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.