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Finding the Fourth Proportional to 18,281.60, 27,422.34 and 5,969.60

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Solution

The fourth proportional to 18,281.60, 27,422.34 and 5,969.60 is: 8,954.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,281.60 : 27,422.34 = 5,969.60 : x
  2. Step 2: Convert to fraction form
    18,281.60/27,422.34 = 5,969.60/x
  3. Step 3: Cross multiply
    18,281.60x = 27,422.34 × 5,969.60
  4. Step 4: Simplify right side
    18,281.60x = 163,700,400.86
  5. Step 5: Solve for x
    x = 163,700,400.86/18,281.60
  6. Step 6: Final answer
    x = 8,954.38

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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.