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Finding the Fourth Proportional to 22,557.64, 33,838.72 and 7,764.60

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Solution

The fourth proportional to 22,557.64, 33,838.72 and 7,764.60 is: 11,647.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,557.64 : 33,838.72 = 7,764.60 : x
  2. Step 2: Convert to fraction form
    22,557.64/33,838.72 = 7,764.60/x
  3. Step 3: Cross multiply
    22,557.64x = 33,838.72 × 7,764.60
  4. Step 4: Simplify right side
    22,557.64x = 262,744,125.31
  5. Step 5: Solve for x
    x = 262,744,125.31/22,557.64
  6. Step 6: Final answer
    x = 11,647.68

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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.