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Finding the Fourth Proportional to 21,789.48, 32,684.22 and 5,373.48

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Solution

The fourth proportional to 21,789.48, 32,684.22 and 5,373.48 is: 8,060.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,789.48 : 32,684.22 = 5,373.48 : x
  2. Step 2: Convert to fraction form
    21,789.48/32,684.22 = 5,373.48/x
  3. Step 3: Cross multiply
    21,789.48x = 32,684.22 × 5,373.48
  4. Step 4: Simplify right side
    21,789.48x = 175,628,002.49
  5. Step 5: Solve for x
    x = 175,628,002.49/21,789.48
  6. Step 6: Final answer
    x = 8,060.22

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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.