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Finding the Fourth Proportional to 13,196.60, 19,823.70 and 9,308.60

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Solution

The fourth proportional to 13,196.60, 19,823.70 and 9,308.60 is: 13,983.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,196.60 : 19,823.70 = 9,308.60 : x
  2. Step 2: Convert to fraction form
    13,196.60/19,823.70 = 9,308.60/x
  3. Step 3: Cross multiply
    13,196.60x = 19,823.70 × 9,308.60
  4. Step 4: Simplify right side
    13,196.60x = 184,530,893.82
  5. Step 5: Solve for x
    x = 184,530,893.82/13,196.60
  6. Step 6: Final answer
    x = 13,983.21

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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.