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Finding the Fourth Proportional to 6,368.27, 8,787.64 and 3,715.17

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Solution

The fourth proportional to 6,368.27, 8,787.64 and 3,715.17 is: 5,126.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,368.27 : 8,787.64 = 3,715.17 : x
  2. Step 2: Convert to fraction form
    6,368.27/8,787.64 = 3,715.17/x
  3. Step 3: Cross multiply
    6,368.27x = 8,787.64 × 3,715.17
  4. Step 4: Simplify right side
    6,368.27x = 32,647,541.22
  5. Step 5: Solve for x
    x = 32,647,541.22/6,368.27
  6. Step 6: Final answer
    x = 5,126.59

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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.