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Finding the Fourth Proportional to 5,445.64, 7,514.88 and 2,961.64

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Solution

The fourth proportional to 5,445.64, 7,514.88 and 2,961.64 is: 4,087.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,445.64 : 7,514.88 = 2,961.64 : x
  2. Step 2: Convert to fraction form
    5,445.64/7,514.88 = 2,961.64/x
  3. Step 3: Cross multiply
    5,445.64x = 7,514.88 × 2,961.64
  4. Step 4: Simplify right side
    5,445.64x = 22,256,369.20
  5. Step 5: Solve for x
    x = 22,256,369.20/5,445.64
  6. Step 6: Final answer
    x = 4,087.01

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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.