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Finding the Fourth Proportional to 11,863.60, 17,795.40 and 10,404.40

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Solution

The fourth proportional to 11,863.60, 17,795.40 and 10,404.40 is: 15,606.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,863.60 : 17,795.40 = 10,404.40 : x
  2. Step 2: Convert to fraction form
    11,863.60/17,795.40 = 10,404.40/x
  3. Step 3: Cross multiply
    11,863.60x = 17,795.40 × 10,404.40
  4. Step 4: Simplify right side
    11,863.60x = 185,150,459.76
  5. Step 5: Solve for x
    x = 185,150,459.76/11,863.60
  6. Step 6: Final answer
    x = 15,606.60

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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.