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Finding the Third Proportional to 4,574.81 and 9,291.38

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Solution

The third proportional to 4,574.81 and 9,291.38 is: 18,870.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,574.81 : 9,291.38 = 9,291.38 : x
  2. Step 2: Convert to fraction form
    4,574.81/9,291.38 = 9,291.38/x
  3. Step 3: Cross multiply
    4,574.81x = 9,291.38 × 9,291.38
  4. Step 4: Simplify right side
    4,574.81x = 86,329,649.39
  5. Step 5: Solve for x
    x = 86,329,649.39/4,574.81
  6. Step 6: Final answer
    x = 18,870.64

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.