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Finding the Fourth Proportional to 7,157.55, 10,736.63 and 4,382.49

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Solution

The fourth proportional to 7,157.55, 10,736.63 and 4,382.49 is: 6,573.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,157.55 : 10,736.63 = 4,382.49 : x
  2. Step 2: Convert to fraction form
    7,157.55/10,736.63 = 4,382.49/x
  3. Step 3: Cross multiply
    7,157.55x = 10,736.63 × 4,382.49
  4. Step 4: Simplify right side
    7,157.55x = 47,053,173.61
  5. Step 5: Solve for x
    x = 47,053,173.61/7,157.55
  6. Step 6: Final answer
    x = 6,573.92

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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.