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Finding the Fourth Proportional to 5,008.58, 7,512.87 and 1,928.42

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Solution

The fourth proportional to 5,008.58, 7,512.87 and 1,928.42 is: 2,892.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,008.58 : 7,512.87 = 1,928.42 : x
  2. Step 2: Convert to fraction form
    5,008.58/7,512.87 = 1,928.42/x
  3. Step 3: Cross multiply
    5,008.58x = 7,512.87 × 1,928.42
  4. Step 4: Simplify right side
    5,008.58x = 14,487,968.77
  5. Step 5: Solve for x
    x = 14,487,968.77/5,008.58
  6. Step 6: Final answer
    x = 2,892.63

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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.