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Finding the Fourth Proportional to 22,137.60, 30,588.80 and 17,697.99

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Solution

The fourth proportional to 22,137.60, 30,588.80 and 17,697.99 is: 24,454.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,137.60 : 30,588.80 = 17,697.99 : x
  2. Step 2: Convert to fraction form
    22,137.60/30,588.80 = 17,697.99/x
  3. Step 3: Cross multiply
    22,137.60x = 30,588.80 × 17,697.99
  4. Step 4: Simplify right side
    22,137.60x = 541,360,188.02
  5. Step 5: Solve for x
    x = 541,360,188.02/22,137.60
  6. Step 6: Final answer
    x = 24,454.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.