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Finding the Fourth Proportional to 21,394.79, 32,107.95 and 10,150.17

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Solution

The fourth proportional to 21,394.79, 32,107.95 and 10,150.17 is: 15,232.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,394.79 : 32,107.95 = 10,150.17 : x
  2. Step 2: Convert to fraction form
    21,394.79/32,107.95 = 10,150.17/x
  3. Step 3: Cross multiply
    21,394.79x = 32,107.95 × 10,150.17
  4. Step 4: Simplify right side
    21,394.79x = 325,901,150.85
  5. Step 5: Solve for x
    x = 325,901,150.85/21,394.79
  6. Step 6: Final answer
    x = 15,232.73

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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.