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Finding the Fourth Proportional to 11,616.35, 17,421.40 and 5,040.99

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Solution

The fourth proportional to 11,616.35, 17,421.40 and 5,040.99 is: 7,560.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,616.35 : 17,421.40 = 5,040.99 : x
  2. Step 2: Convert to fraction form
    11,616.35/17,421.40 = 5,040.99/x
  3. Step 3: Cross multiply
    11,616.35x = 17,421.40 × 5,040.99
  4. Step 4: Simplify right side
    11,616.35x = 87,821,103.19
  5. Step 5: Solve for x
    x = 87,821,103.19/11,616.35
  6. Step 6: Final answer
    x = 7,560.13

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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.