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Finding the Fourth Proportional to 8,957.71, 13,436.26 and 3,114.17

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Solution

The fourth proportional to 8,957.71, 13,436.26 and 3,114.17 is: 4,671.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,957.71 : 13,436.26 = 3,114.17 : x
  2. Step 2: Convert to fraction form
    8,957.71/13,436.26 = 3,114.17/x
  3. Step 3: Cross multiply
    8,957.71x = 13,436.26 × 3,114.17
  4. Step 4: Simplify right side
    8,957.71x = 41,842,797.80
  5. Step 5: Solve for x
    x = 41,842,797.80/8,957.71
  6. Step 6: Final answer
    x = 4,671.15

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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.