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Finding the Fourth Proportional to 22,289.88, 30,754.62 and 12,353.88

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Solution

The fourth proportional to 22,289.88, 30,754.62 and 12,353.88 is: 17,045.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,289.88 : 30,754.62 = 12,353.88 : x
  2. Step 2: Convert to fraction form
    22,289.88/30,754.62 = 12,353.88/x
  3. Step 3: Cross multiply
    22,289.88x = 30,754.62 × 12,353.88
  4. Step 4: Simplify right side
    22,289.88x = 379,938,884.93
  5. Step 5: Solve for x
    x = 379,938,884.93/22,289.88
  6. Step 6: Final answer
    x = 17,045.35

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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.