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Finding the Fourth Proportional to 17,993,421.10, 26,990,131.65 and 17,993,421.10

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Solution

The fourth proportional to 17,993,421.10, 26,990,131.65 and 17,993,421.10 is: 26,990,131.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,993,421.10 : 26,990,131.65 = 17,993,421.10 : x
  2. Step 2: Convert to fraction form
    17,993,421.10/26,990,131.65 = 17,993,421.10/x
  3. Step 3: Cross multiply
    17,993,421.10x = 26,990,131.65 × 17,993,421.10
  4. Step 4: Simplify right side
    17,993,421.10x = 485,644,804,322,887.81
  5. Step 5: Solve for x
    x = 485,644,804,322,887.81/17,993,421.10
  6. Step 6: Final answer
    x = 26,990,131.65

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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.