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Finding the Fourth Proportional to 21,967.55, 32,956.54 and 7,176.44

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Solution

The fourth proportional to 21,967.55, 32,956.54 and 7,176.44 is: 10,766.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,967.55 : 32,956.54 = 7,176.44 : x
  2. Step 2: Convert to fraction form
    21,967.55/32,956.54 = 7,176.44/x
  3. Step 3: Cross multiply
    21,967.55x = 32,956.54 × 7,176.44
  4. Step 4: Simplify right side
    21,967.55x = 236,510,696.37
  5. Step 5: Solve for x
    x = 236,510,696.37/21,967.55
  6. Step 6: Final answer
    x = 10,766.37

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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.