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Finding the Fourth Proportional to 5,165.64, 7,130.22 and 3,302.64

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Solution

The fourth proportional to 5,165.64, 7,130.22 and 3,302.64 is: 4,558.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,165.64 : 7,130.22 = 3,302.64 : x
  2. Step 2: Convert to fraction form
    5,165.64/7,130.22 = 3,302.64/x
  3. Step 3: Cross multiply
    5,165.64x = 7,130.22 × 3,302.64
  4. Step 4: Simplify right side
    5,165.64x = 23,548,549.78
  5. Step 5: Solve for x
    x = 23,548,549.78/5,165.64
  6. Step 6: Final answer
    x = 4,558.69

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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.