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Finding the Fourth Proportional to 11,173.51, 16,676.65 and 10,988.99

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Solution

The fourth proportional to 11,173.51, 16,676.65 and 10,988.99 is: 16,401.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,173.51 : 16,676.65 = 10,988.99 : x
  2. Step 2: Convert to fraction form
    11,173.51/16,676.65 = 10,988.99/x
  3. Step 3: Cross multiply
    11,173.51x = 16,676.65 × 10,988.99
  4. Step 4: Simplify right side
    11,173.51x = 183,259,540.08
  5. Step 5: Solve for x
    x = 183,259,540.08/11,173.51
  6. Step 6: Final answer
    x = 16,401.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.