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Finding the Fourth Proportional to 22,442.67, 30,972.67 and 12,372.91

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Solution

The fourth proportional to 22,442.67, 30,972.67 and 12,372.91 is: 17,075.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,442.67 : 30,972.67 = 12,372.91 : x
  2. Step 2: Convert to fraction form
    22,442.67/30,972.67 = 12,372.91/x
  3. Step 3: Cross multiply
    22,442.67x = 30,972.67 × 12,372.91
  4. Step 4: Simplify right side
    22,442.67x = 383,221,841.64
  5. Step 5: Solve for x
    x = 383,221,841.64/22,442.67
  6. Step 6: Final answer
    x = 17,075.59

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1.5x scale

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.