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Finding the Fourth Proportional to 21,747.68, 32,625.52 and 9,267.68

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Solution

The fourth proportional to 21,747.68, 32,625.52 and 9,267.68 is: 13,903.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,747.68 : 32,625.52 = 9,267.68 : x
  2. Step 2: Convert to fraction form
    21,747.68/32,625.52 = 9,267.68/x
  3. Step 3: Cross multiply
    21,747.68x = 32,625.52 × 9,267.68
  4. Step 4: Simplify right side
    21,747.68x = 302,362,879.19
  5. Step 5: Solve for x
    x = 302,362,879.19/21,747.68
  6. Step 6: Final answer
    x = 13,903.22

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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.