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Finding the Fourth Proportional to 21,955.50, 32,933.25 and 10,276.92

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Solution

The fourth proportional to 21,955.50, 32,933.25 and 10,276.92 is: 15,415.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,955.50 : 32,933.25 = 10,276.92 : x
  2. Step 2: Convert to fraction form
    21,955.50/32,933.25 = 10,276.92/x
  3. Step 3: Cross multiply
    21,955.50x = 32,933.25 × 10,276.92
  4. Step 4: Simplify right side
    21,955.50x = 338,452,375.59
  5. Step 5: Solve for x
    x = 338,452,375.59/21,955.50
  6. Step 6: Final answer
    x = 15,415.38

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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.