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Finding the Fourth Proportional to 21,992.40, 32,995.84 and 14,625.84

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Solution

The fourth proportional to 21,992.40, 32,995.84 and 14,625.84 is: 21,943.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,992.40 : 32,995.84 = 14,625.84 : x
  2. Step 2: Convert to fraction form
    21,992.40/32,995.84 = 14,625.84/x
  3. Step 3: Cross multiply
    21,992.40x = 32,995.84 × 14,625.84
  4. Step 4: Simplify right side
    21,992.40x = 482,591,876.51
  5. Step 5: Solve for x
    x = 482,591,876.51/21,992.40
  6. Step 6: Final answer
    x = 21,943.57

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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.