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Finding the Fourth Proportional to 8,907.60, 13,361.19 and 5,164.97

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Solution

The fourth proportional to 8,907.60, 13,361.19 and 5,164.97 is: 7,747.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,907.60 : 13,361.19 = 5,164.97 : x
  2. Step 2: Convert to fraction form
    8,907.60/13,361.19 = 5,164.97/x
  3. Step 3: Cross multiply
    8,907.60x = 13,361.19 × 5,164.97
  4. Step 4: Simplify right side
    8,907.60x = 69,010,059.34
  5. Step 5: Solve for x
    x = 69,010,059.34/8,907.60
  6. Step 6: Final answer
    x = 7,747.32

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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.