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Finding the Fourth Proportional to 7,587.60, 11,382.60 and 2,907.42

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Solution

The fourth proportional to 7,587.60, 11,382.60 and 2,907.42 is: 4,361.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,587.60 : 11,382.60 = 2,907.42 : x
  2. Step 2: Convert to fraction form
    7,587.60/11,382.60 = 2,907.42/x
  3. Step 3: Cross multiply
    7,587.60x = 11,382.60 × 2,907.42
  4. Step 4: Simplify right side
    7,587.60x = 33,093,998.89
  5. Step 5: Solve for x
    x = 33,093,998.89/7,587.60
  6. Step 6: Final answer
    x = 4,361.59

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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.