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Finding the Fourth Proportional to 11,648.79, 17,473.14 and 5,074.20

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Solution

The fourth proportional to 11,648.79, 17,473.14 and 5,074.20 is: 7,611.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,648.79 : 17,473.14 = 5,074.20 : x
  2. Step 2: Convert to fraction form
    11,648.79/17,473.14 = 5,074.20/x
  3. Step 3: Cross multiply
    11,648.79x = 17,473.14 × 5,074.20
  4. Step 4: Simplify right side
    11,648.79x = 88,662,206.99
  5. Step 5: Solve for x
    x = 88,662,206.99/11,648.79
  6. Step 6: Final answer
    x = 7,611.28

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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.