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Finding the Fourth Proportional to 22,485.84, 33,703.48 and 8,432.24

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Solution

The fourth proportional to 22,485.84, 33,703.48 and 8,432.24 is: 12,638.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,485.84 : 33,703.48 = 8,432.24 : x
  2. Step 2: Convert to fraction form
    22,485.84/33,703.48 = 8,432.24/x
  3. Step 3: Cross multiply
    22,485.84x = 33,703.48 × 8,432.24
  4. Step 4: Simplify right side
    22,485.84x = 284,195,832.20
  5. Step 5: Solve for x
    x = 284,195,832.20/22,485.84
  6. Step 6: Final answer
    x = 12,638.88

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1.5x scale

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.