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Finding the Fourth Proportional to 17,605.10, 26,389.88 and 11,035.91

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Solution

The fourth proportional to 17,605.10, 26,389.88 and 11,035.91 is: 16,542.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,605.10 : 26,389.88 = 11,035.91 : x
  2. Step 2: Convert to fraction form
    17,605.10/26,389.88 = 11,035.91/x
  3. Step 3: Cross multiply
    17,605.10x = 26,389.88 × 11,035.91
  4. Step 4: Simplify right side
    17,605.10x = 291,236,153.46
  5. Step 5: Solve for x
    x = 291,236,153.46/17,605.10
  6. Step 6: Final answer
    x = 16,542.72

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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.