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Finding the Fourth Proportional to 22,590.31, 33,890 and 7,799.80

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Solution

The fourth proportional to 22,590.31, 33,890 and 7,799.80 is: 11,701.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,590.31 : 33,890 = 7,799.80 : x
  2. Step 2: Convert to fraction form
    22,590.31/33,890 = 7,799.80/x
  3. Step 3: Cross multiply
    22,590.31x = 33,890 × 7,799.80
  4. Step 4: Simplify right side
    22,590.31x = 264,335,222
  5. Step 5: Solve for x
    x = 264,335,222/22,590.31
  6. Step 6: Final answer
    x = 11,701.27

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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.