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Finding the Fourth Proportional to 19,614.99, 27,069.21 and 10,663.09

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Solution

The fourth proportional to 19,614.99, 27,069.21 and 10,663.09 is: 14,715.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,614.99 : 27,069.21 = 10,663.09 : x
  2. Step 2: Convert to fraction form
    19,614.99/27,069.21 = 10,663.09/x
  3. Step 3: Cross multiply
    19,614.99x = 27,069.21 × 10,663.09
  4. Step 4: Simplify right side
    19,614.99x = 288,641,422.46
  5. Step 5: Solve for x
    x = 288,641,422.46/19,614.99
  6. Step 6: Final answer
    x = 14,715.35

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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.