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Finding the Fourth Proportional to 17,773.36, 26,660 and 16,690.76

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Solution

The fourth proportional to 17,773.36, 26,660 and 16,690.76 is: 25,036.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,773.36 : 26,660 = 16,690.76 : x
  2. Step 2: Convert to fraction form
    17,773.36/26,660 = 16,690.76/x
  3. Step 3: Cross multiply
    17,773.36x = 26,660 × 16,690.76
  4. Step 4: Simplify right side
    17,773.36x = 444,975,661.60
  5. Step 5: Solve for x
    x = 444,975,661.60/17,773.36
  6. Step 6: Final answer
    x = 25,036.10

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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.