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Finding the Fourth Proportional to 17,009.76, 25,513.20 and 5,913.60

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Solution

The fourth proportional to 17,009.76, 25,513.20 and 5,913.60 is: 8,869.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,009.76 : 25,513.20 = 5,913.60 : x
  2. Step 2: Convert to fraction form
    17,009.76/25,513.20 = 5,913.60/x
  3. Step 3: Cross multiply
    17,009.76x = 25,513.20 × 5,913.60
  4. Step 4: Simplify right side
    17,009.76x = 150,874,859.52
  5. Step 5: Solve for x
    x = 150,874,859.52/17,009.76
  6. Step 6: Final answer
    x = 8,869.90

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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.