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Finding the Fourth Proportional to 5,742.88, 8,615.53 and 1,847.59

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Solution

The fourth proportional to 5,742.88, 8,615.53 and 1,847.59 is: 2,771.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,742.88 : 8,615.53 = 1,847.59 : x
  2. Step 2: Convert to fraction form
    5,742.88/8,615.53 = 1,847.59/x
  3. Step 3: Cross multiply
    5,742.88x = 8,615.53 × 1,847.59
  4. Step 4: Simplify right side
    5,742.88x = 15,917,967.07
  5. Step 5: Solve for x
    x = 15,917,967.07/5,742.88
  6. Step 6: Final answer
    x = 2,771.77

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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.