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Finding the Fourth Proportional to 7,652.16, 11,475.54 and 2,720.88

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Solution

The fourth proportional to 7,652.16, 11,475.54 and 2,720.88 is: 4,080.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,652.16 : 11,475.54 = 2,720.88 : x
  2. Step 2: Convert to fraction form
    7,652.16/11,475.54 = 2,720.88/x
  3. Step 3: Cross multiply
    7,652.16x = 11,475.54 × 2,720.88
  4. Step 4: Simplify right side
    7,652.16x = 31,223,567.28
  5. Step 5: Solve for x
    x = 31,223,567.28/7,652.16
  6. Step 6: Final answer
    x = 4,080.36

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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.