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Finding the Fourth Proportional to 22,107.60, 30,501 and 13,600.98

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Solution

The fourth proportional to 22,107.60, 30,501 and 13,600.98 is: 18,764.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,107.60 : 30,501 = 13,600.98 : x
  2. Step 2: Convert to fraction form
    22,107.60/30,501 = 13,600.98/x
  3. Step 3: Cross multiply
    22,107.60x = 30,501 × 13,600.98
  4. Step 4: Simplify right side
    22,107.60x = 414,843,490.98
  5. Step 5: Solve for x
    x = 414,843,490.98/22,107.60
  6. Step 6: Final answer
    x = 18,764.75

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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.