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Finding the Fourth Proportional to 11,893.11, 16,412.02 and 6,587.80

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Solution

The fourth proportional to 11,893.11, 16,412.02 and 6,587.80 is: 9,090.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,893.11 : 16,412.02 = 6,587.80 : x
  2. Step 2: Convert to fraction form
    11,893.11/16,412.02 = 6,587.80/x
  3. Step 3: Cross multiply
    11,893.11x = 16,412.02 × 6,587.80
  4. Step 4: Simplify right side
    11,893.11x = 108,119,105.36
  5. Step 5: Solve for x
    x = 108,119,105.36/11,893.11
  6. Step 6: Final answer
    x = 9,090.90

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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.