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Finding the Fourth Proportional to 22,407.58, 33,590.58 and 9,920.94

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Solution

The fourth proportional to 22,407.58, 33,590.58 and 9,920.94 is: 14,872.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,407.58 : 33,590.58 = 9,920.94 : x
  2. Step 2: Convert to fraction form
    22,407.58/33,590.58 = 9,920.94/x
  3. Step 3: Cross multiply
    22,407.58x = 33,590.58 × 9,920.94
  4. Step 4: Simplify right side
    22,407.58x = 333,250,128.75
  5. Step 5: Solve for x
    x = 333,250,128.75/22,407.58
  6. Step 6: Final answer
    x = 14,872.21

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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.