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Finding the Fourth Proportional to 5,245.43, 7,238.36 and 4,827.47

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Solution

The fourth proportional to 5,245.43, 7,238.36 and 4,827.47 is: 6,661.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,245.43 : 7,238.36 = 4,827.47 : x
  2. Step 2: Convert to fraction form
    5,245.43/7,238.36 = 4,827.47/x
  3. Step 3: Cross multiply
    5,245.43x = 7,238.36 × 4,827.47
  4. Step 4: Simplify right side
    5,245.43x = 34,942,941.63
  5. Step 5: Solve for x
    x = 34,942,941.63/5,245.43
  6. Step 6: Final answer
    x = 6,661.60

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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.