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Finding the Fourth Proportional to 11,613.70, 16,028.29 and 6,897.99

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Solution

The fourth proportional to 11,613.70, 16,028.29 and 6,897.99 is: 9,520.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,613.70 : 16,028.29 = 6,897.99 : x
  2. Step 2: Convert to fraction form
    11,613.70/16,028.29 = 6,897.99/x
  3. Step 3: Cross multiply
    11,613.70x = 16,028.29 × 6,897.99
  4. Step 4: Simplify right side
    11,613.70x = 110,562,984.14
  5. Step 5: Solve for x
    x = 110,562,984.14/11,613.70
  6. Step 6: Final answer
    x = 9,520.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.