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Finding the Fourth Proportional to 22,059.28, 30,421.03 and 17,015.50

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Solution

The fourth proportional to 22,059.28, 30,421.03 and 17,015.50 is: 23,465.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,059.28 : 30,421.03 = 17,015.50 : x
  2. Step 2: Convert to fraction form
    22,059.28/30,421.03 = 17,015.50/x
  3. Step 3: Cross multiply
    22,059.28x = 30,421.03 × 17,015.50
  4. Step 4: Simplify right side
    22,059.28x = 517,629,035.97
  5. Step 5: Solve for x
    x = 517,629,035.97/22,059.28
  6. Step 6: Final answer
    x = 23,465.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.