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Finding the Fourth Proportional to 14,671.53, 20,246.36 and 8,383.50

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Solution

The fourth proportional to 14,671.53, 20,246.36 and 8,383.50 is: 11,569.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,671.53 : 20,246.36 = 8,383.50 : x
  2. Step 2: Convert to fraction form
    14,671.53/20,246.36 = 8,383.50/x
  3. Step 3: Cross multiply
    14,671.53x = 20,246.36 × 8,383.50
  4. Step 4: Simplify right side
    14,671.53x = 169,735,317.14
  5. Step 5: Solve for x
    x = 169,735,317.14/14,671.53
  6. Step 6: Final answer
    x = 11,569.03

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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.