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Finding the Fourth Proportional to 19,174.49, 26,472.92 and 14,689.92

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Solution

The fourth proportional to 19,174.49, 26,472.92 and 14,689.92 is: 20,281.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,174.49 : 26,472.92 = 14,689.92 : x
  2. Step 2: Convert to fraction form
    19,174.49/26,472.92 = 14,689.92/x
  3. Step 3: Cross multiply
    19,174.49x = 26,472.92 × 14,689.92
  4. Step 4: Simplify right side
    19,174.49x = 388,885,003.52
  5. Step 5: Solve for x
    x = 388,885,003.52/19,174.49
  6. Step 6: Final answer
    x = 20,281.38

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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.