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Finding the Fourth Proportional to 14,503.68, 21,755.52 and 5,739.84

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Solution

The fourth proportional to 14,503.68, 21,755.52 and 5,739.84 is: 8,609.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,503.68 : 21,755.52 = 5,739.84 : x
  2. Step 2: Convert to fraction form
    14,503.68/21,755.52 = 5,739.84/x
  3. Step 3: Cross multiply
    14,503.68x = 21,755.52 × 5,739.84
  4. Step 4: Simplify right side
    14,503.68x = 124,873,203.92
  5. Step 5: Solve for x
    x = 124,873,203.92/14,503.68
  6. Step 6: Final answer
    x = 8,609.76

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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.