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Finding the Fourth Proportional to 14,969.20, 22,396.20 and 9,785.20

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Solution

The fourth proportional to 14,969.20, 22,396.20 and 9,785.20 is: 14,640.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,969.20 : 22,396.20 = 9,785.20 : x
  2. Step 2: Convert to fraction form
    14,969.20/22,396.20 = 9,785.20/x
  3. Step 3: Cross multiply
    14,969.20x = 22,396.20 × 9,785.20
  4. Step 4: Simplify right side
    14,969.20x = 219,151,296.24
  5. Step 5: Solve for x
    x = 219,151,296.24/14,969.20
  6. Step 6: Final answer
    x = 14,640.15

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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.