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Finding the Fourth Proportional to 19,574.69, 27,020.08 and 11,616.91

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Solution

The fourth proportional to 19,574.69, 27,020.08 and 11,616.91 is: 16,035.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,574.69 : 27,020.08 = 11,616.91 : x
  2. Step 2: Convert to fraction form
    19,574.69/27,020.08 = 11,616.91/x
  3. Step 3: Cross multiply
    19,574.69x = 27,020.08 × 11,616.91
  4. Step 4: Simplify right side
    19,574.69x = 313,889,837.55
  5. Step 5: Solve for x
    x = 313,889,837.55/19,574.69
  6. Step 6: Final answer
    x = 16,035.49

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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.