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Finding the Fourth Proportional to 36,993, 51,037.86 and 21,066.18

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Solution

The fourth proportional to 36,993, 51,037.86 and 21,066.18 is: 29,064.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,993 : 51,037.86 = 21,066.18 : x
  2. Step 2: Convert to fraction form
    36,993/51,037.86 = 21,066.18/x
  3. Step 3: Cross multiply
    36,993x = 51,037.86 × 21,066.18
  4. Step 4: Simplify right side
    36,993x = 1,075,172,745.57
  5. Step 5: Solve for x
    x = 1,075,172,745.57/36,993
  6. Step 6: Final answer
    x = 29,064.22

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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.