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Finding the Fourth Proportional to 8,895.71, 12,276.71 and 4,916.73

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Solution

The fourth proportional to 8,895.71, 12,276.71 and 4,916.73 is: 6,785.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,895.71 : 12,276.71 = 4,916.73 : x
  2. Step 2: Convert to fraction form
    8,895.71/12,276.71 = 4,916.73/x
  3. Step 3: Cross multiply
    8,895.71x = 12,276.71 × 4,916.73
  4. Step 4: Simplify right side
    8,895.71x = 60,361,268.36
  5. Step 5: Solve for x
    x = 60,361,268.36/8,895.71
  6. Step 6: Final answer
    x = 6,785.44

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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.