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Finding the Fourth Proportional to 22,392.70, 33,587.70 and 9,909.07

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Solution

The fourth proportional to 22,392.70, 33,587.70 and 9,909.07 is: 14,863.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,392.70 : 33,587.70 = 9,909.07 : x
  2. Step 2: Convert to fraction form
    22,392.70/33,587.70 = 9,909.07/x
  3. Step 3: Cross multiply
    22,392.70x = 33,587.70 × 9,909.07
  4. Step 4: Simplify right side
    22,392.70x = 332,822,870.44
  5. Step 5: Solve for x
    x = 332,822,870.44/22,392.70
  6. Step 6: Final answer
    x = 14,863.01

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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.