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Finding the Fourth Proportional to 22,490.16, 33,738.48 and 6,909.12

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Solution

The fourth proportional to 22,490.16, 33,738.48 and 6,909.12 is: 10,364.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,490.16 : 33,738.48 = 6,909.12 : x
  2. Step 2: Convert to fraction form
    22,490.16/33,738.48 = 6,909.12/x
  3. Step 3: Cross multiply
    22,490.16x = 33,738.48 × 6,909.12
  4. Step 4: Simplify right side
    22,490.16x = 233,103,206.94
  5. Step 5: Solve for x
    x = 233,103,206.94/22,490.16
  6. Step 6: Final answer
    x = 10,364.68

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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.