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Finding the Fourth Proportional to 13,946.60, 19,241.01 and 9,169.12

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Solution

The fourth proportional to 13,946.60, 19,241.01 and 9,169.12 is: 12,649.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,946.60 : 19,241.01 = 9,169.12 : x
  2. Step 2: Convert to fraction form
    13,946.60/19,241.01 = 9,169.12/x
  3. Step 3: Cross multiply
    13,946.60x = 19,241.01 × 9,169.12
  4. Step 4: Simplify right side
    13,946.60x = 176,423,129.61
  5. Step 5: Solve for x
    x = 176,423,129.61/13,946.60
  6. Step 6: Final answer
    x = 12,649.90

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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.