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Finding the Fourth Proportional to 21,504.72, 32,237.64 and 7,650.48

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Solution

The fourth proportional to 21,504.72, 32,237.64 and 7,650.48 is: 11,468.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,504.72 : 32,237.64 = 7,650.48 : x
  2. Step 2: Convert to fraction form
    21,504.72/32,237.64 = 7,650.48/x
  3. Step 3: Cross multiply
    21,504.72x = 32,237.64 × 7,650.48
  4. Step 4: Simplify right side
    21,504.72x = 246,633,420.07
  5. Step 5: Solve for x
    x = 246,633,420.07/21,504.72
  6. Step 6: Final answer
    x = 11,468.80

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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.