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Finding the Fourth Proportional to 21,967.66, 32,944.67 and 7,925.86

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Solution

The fourth proportional to 21,967.66, 32,944.67 and 7,925.86 is: 11,886.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,967.66 : 32,944.67 = 7,925.86 : x
  2. Step 2: Convert to fraction form
    21,967.66/32,944.67 = 7,925.86/x
  3. Step 3: Cross multiply
    21,967.66x = 32,944.67 × 7,925.86
  4. Step 4: Simplify right side
    21,967.66x = 261,114,739.99
  5. Step 5: Solve for x
    x = 261,114,739.99/21,967.66
  6. Step 6: Final answer
    x = 11,886.33

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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.