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Finding the Fourth Proportional to 11,394.80, 17,059.80 and 10,228.40

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Solution

The fourth proportional to 11,394.80, 17,059.80 and 10,228.40 is: 15,313.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,394.80 : 17,059.80 = 10,228.40 : x
  2. Step 2: Convert to fraction form
    11,394.80/17,059.80 = 10,228.40/x
  3. Step 3: Cross multiply
    11,394.80x = 17,059.80 × 10,228.40
  4. Step 4: Simplify right side
    11,394.80x = 174,494,458.32
  5. Step 5: Solve for x
    x = 174,494,458.32/11,394.80
  6. Step 6: Final answer
    x = 15,313.52

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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.