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Finding the Fourth Proportional to 19,367.68, 29,055.84 and 7,682.08

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Solution

The fourth proportional to 19,367.68, 29,055.84 and 7,682.08 is: 11,524.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,367.68 : 29,055.84 = 7,682.08 : x
  2. Step 2: Convert to fraction form
    19,367.68/29,055.84 = 7,682.08/x
  3. Step 3: Cross multiply
    19,367.68x = 29,055.84 × 7,682.08
  4. Step 4: Simplify right side
    19,367.68x = 223,209,287.35
  5. Step 5: Solve for x
    x = 223,209,287.35/19,367.68
  6. Step 6: Final answer
    x = 11,524.83

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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.