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Finding the Fourth Proportional to 22,559.48, 33,830.88 and 7,764.32

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Solution

The fourth proportional to 22,559.48, 33,830.88 and 7,764.32 is: 11,643.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,559.48 : 33,830.88 = 7,764.32 : x
  2. Step 2: Convert to fraction form
    22,559.48/33,830.88 = 7,764.32/x
  3. Step 3: Cross multiply
    22,559.48x = 33,830.88 × 7,764.32
  4. Step 4: Simplify right side
    22,559.48x = 262,673,778.20
  5. Step 5: Solve for x
    x = 262,673,778.20/22,559.48
  6. Step 6: Final answer
    x = 11,643.61

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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.