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Finding the Fourth Proportional to 22,505.60, 33,762.50 and 7,716.01

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Solution

The fourth proportional to 22,505.60, 33,762.50 and 7,716.01 is: 11,575.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,505.60 : 33,762.50 = 7,716.01 : x
  2. Step 2: Convert to fraction form
    22,505.60/33,762.50 = 7,716.01/x
  3. Step 3: Cross multiply
    22,505.60x = 33,762.50 × 7,716.01
  4. Step 4: Simplify right side
    22,505.60x = 260,511,787.63
  5. Step 5: Solve for x
    x = 260,511,787.63/22,505.60
  6. Step 6: Final answer
    x = 11,575.42

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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.