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Finding the Fourth Proportional to 5,531.64, 7,633.65 and 3,047.64

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Solution

The fourth proportional to 5,531.64, 7,633.65 and 3,047.64 is: 4,205.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,531.64 : 7,633.65 = 3,047.64 : x
  2. Step 2: Convert to fraction form
    5,531.64/7,633.65 = 3,047.64/x
  3. Step 3: Cross multiply
    5,531.64x = 7,633.65 × 3,047.64
  4. Step 4: Simplify right side
    5,531.64x = 23,264,617.09
  5. Step 5: Solve for x
    x = 23,264,617.09/5,531.64
  6. Step 6: Final answer
    x = 4,205.74

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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.