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Finding the Fourth Proportional to 5,168.52, 7,781.88 and 4,556.16

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Solution

The fourth proportional to 5,168.52, 7,781.88 and 4,556.16 is: 6,859.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,168.52 : 7,781.88 = 4,556.16 : x
  2. Step 2: Convert to fraction form
    5,168.52/7,781.88 = 4,556.16/x
  3. Step 3: Cross multiply
    5,168.52x = 7,781.88 × 4,556.16
  4. Step 4: Simplify right side
    5,168.52x = 35,455,490.38
  5. Step 5: Solve for x
    x = 35,455,490.38/5,168.52
  6. Step 6: Final answer
    x = 6,859.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.