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Finding the Fourth Proportional to 22,028.66, 30,390.90 and 12,592.16

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Solution

The fourth proportional to 22,028.66, 30,390.90 and 12,592.16 is: 17,372.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,028.66 : 30,390.90 = 12,592.16 : x
  2. Step 2: Convert to fraction form
    22,028.66/30,390.90 = 12,592.16/x
  3. Step 3: Cross multiply
    22,028.66x = 30,390.90 × 12,592.16
  4. Step 4: Simplify right side
    22,028.66x = 382,687,075.34
  5. Step 5: Solve for x
    x = 382,687,075.34/22,028.66
  6. Step 6: Final answer
    x = 17,372.24

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.