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Finding the Fourth Proportional to 5,520.94, 7,615.54 and 3,503.64

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Solution

The fourth proportional to 5,520.94, 7,615.54 and 3,503.64 is: 4,832.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,520.94 : 7,615.54 = 3,503.64 : x
  2. Step 2: Convert to fraction form
    5,520.94/7,615.54 = 3,503.64/x
  3. Step 3: Cross multiply
    5,520.94x = 7,615.54 × 3,503.64
  4. Step 4: Simplify right side
    5,520.94x = 26,682,110.57
  5. Step 5: Solve for x
    x = 26,682,110.57/5,520.94
  6. Step 6: Final answer
    x = 4,832.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.