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Finding the Fourth Proportional to 7,224.43, 9,977.94 and 4,862.47

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Solution

The fourth proportional to 7,224.43, 9,977.94 and 4,862.47 is: 6,715.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,224.43 : 9,977.94 = 4,862.47 : x
  2. Step 2: Convert to fraction form
    7,224.43/9,977.94 = 4,862.47/x
  3. Step 3: Cross multiply
    7,224.43x = 9,977.94 × 4,862.47
  4. Step 4: Simplify right side
    7,224.43x = 48,517,433.91
  5. Step 5: Solve for x
    x = 48,517,433.91/7,224.43
  6. Step 6: Final answer
    x = 6,715.75

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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.