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Finding the Fourth Proportional to 21,953.23, 32,933.93 and 7,166.34

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Solution

The fourth proportional to 21,953.23, 32,933.93 and 7,166.34 is: 10,750.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,953.23 : 32,933.93 = 7,166.34 : x
  2. Step 2: Convert to fraction form
    21,953.23/32,933.93 = 7,166.34/x
  3. Step 3: Cross multiply
    21,953.23x = 32,933.93 × 7,166.34
  4. Step 4: Simplify right side
    21,953.23x = 236,015,704.08
  5. Step 5: Solve for x
    x = 236,015,704.08/21,953.23
  6. Step 6: Final answer
    x = 10,750.84

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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.