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Finding the Fourth Proportional to 7,261.65, 10,893.02 and 3,512.30

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Solution

The fourth proportional to 7,261.65, 10,893.02 and 3,512.30 is: 5,268.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,261.65 : 10,893.02 = 3,512.30 : x
  2. Step 2: Convert to fraction form
    7,261.65/10,893.02 = 3,512.30/x
  3. Step 3: Cross multiply
    7,261.65x = 10,893.02 × 3,512.30
  4. Step 4: Simplify right side
    7,261.65x = 38,259,482.12
  5. Step 5: Solve for x
    x = 38,259,482.12/7,261.65
  6. Step 6: Final answer
    x = 5,268.70

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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.