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Finding the Fourth Proportional to 14,216.60, 19,622.51 and 8,247.51

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Solution

The fourth proportional to 14,216.60, 19,622.51 and 8,247.51 is: 11,383.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,216.60 : 19,622.51 = 8,247.51 : x
  2. Step 2: Convert to fraction form
    14,216.60/19,622.51 = 8,247.51/x
  3. Step 3: Cross multiply
    14,216.60x = 19,622.51 × 8,247.51
  4. Step 4: Simplify right side
    14,216.60x = 161,836,806.21
  5. Step 5: Solve for x
    x = 161,836,806.21/14,216.60
  6. Step 6: Final answer
    x = 11,383.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.