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Finding the Fourth Proportional to 21,924.91, 32,887.77 and 7,133.77

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Solution

The fourth proportional to 21,924.91, 32,887.77 and 7,133.77 is: 10,700.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,924.91 : 32,887.77 = 7,133.77 : x
  2. Step 2: Convert to fraction form
    21,924.91/32,887.77 = 7,133.77/x
  3. Step 3: Cross multiply
    21,924.91x = 32,887.77 × 7,133.77
  4. Step 4: Simplify right side
    21,924.91x = 234,613,704.77
  5. Step 5: Solve for x
    x = 234,613,704.77/21,924.91
  6. Step 6: Final answer
    x = 10,700.78

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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.