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Finding the Fourth Proportional to 17,114.60, 25,671.54 and 7,880.60

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Solution

The fourth proportional to 17,114.60, 25,671.54 and 7,880.60 is: 11,820.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,114.60 : 25,671.54 = 7,880.60 : x
  2. Step 2: Convert to fraction form
    17,114.60/25,671.54 = 7,880.60/x
  3. Step 3: Cross multiply
    17,114.60x = 25,671.54 × 7,880.60
  4. Step 4: Simplify right side
    17,114.60x = 202,307,138.12
  5. Step 5: Solve for x
    x = 202,307,138.12/17,114.60
  6. Step 6: Final answer
    x = 11,820.73

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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.