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Finding the Fourth Proportional to 11,111.99, 16,667.99 and 4,451.49

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Solution

The fourth proportional to 11,111.99, 16,667.99 and 4,451.49 is: 6,677.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,111.99 : 16,667.99 = 4,451.49 : x
  2. Step 2: Convert to fraction form
    11,111.99/16,667.99 = 4,451.49/x
  3. Step 3: Cross multiply
    11,111.99x = 16,667.99 × 4,451.49
  4. Step 4: Simplify right side
    11,111.99x = 74,197,390.81
  5. Step 5: Solve for x
    x = 74,197,390.81/11,111.99
  6. Step 6: Final answer
    x = 6,677.24

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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.