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Finding the Fourth Proportional to 11,593.80, 17,390.70 and 5,015.40

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Solution

The fourth proportional to 11,593.80, 17,390.70 and 5,015.40 is: 7,523.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,593.80 : 17,390.70 = 5,015.40 : x
  2. Step 2: Convert to fraction form
    11,593.80/17,390.70 = 5,015.40/x
  3. Step 3: Cross multiply
    11,593.80x = 17,390.70 × 5,015.40
  4. Step 4: Simplify right side
    11,593.80x = 87,221,316.78
  5. Step 5: Solve for x
    x = 87,221,316.78/11,593.80
  6. Step 6: Final answer
    x = 7,523.10

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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.