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Finding the Fourth Proportional to 18,894.28, 28,329.27 and 9,033.34

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Solution

The fourth proportional to 18,894.28, 28,329.27 and 9,033.34 is: 13,544.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,894.28 : 28,329.27 = 9,033.34 : x
  2. Step 2: Convert to fraction form
    18,894.28/28,329.27 = 9,033.34/x
  3. Step 3: Cross multiply
    18,894.28x = 28,329.27 × 9,033.34
  4. Step 4: Simplify right side
    18,894.28x = 255,907,927.86
  5. Step 5: Solve for x
    x = 255,907,927.86/18,894.28
  6. Step 6: Final answer
    x = 13,544.20

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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.