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Finding the Fourth Proportional to 11,865.99, 17,798.99 and 4,472.11

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Solution

The fourth proportional to 11,865.99, 17,798.99 and 4,472.11 is: 6,708.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,865.99 : 17,798.99 = 4,472.11 : x
  2. Step 2: Convert to fraction form
    11,865.99/17,798.99 = 4,472.11/x
  3. Step 3: Cross multiply
    11,865.99x = 17,798.99 × 4,472.11
  4. Step 4: Simplify right side
    11,865.99x = 79,599,066.21
  5. Step 5: Solve for x
    x = 79,599,066.21/11,865.99
  6. Step 6: Final answer
    x = 6,708.17

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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.