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Finding the Fourth Proportional to 5,264.28, 7,896.42 and 2,957.40

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Solution

The fourth proportional to 5,264.28, 7,896.42 and 2,957.40 is: 4,436.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,264.28 : 7,896.42 = 2,957.40 : x
  2. Step 2: Convert to fraction form
    5,264.28/7,896.42 = 2,957.40/x
  3. Step 3: Cross multiply
    5,264.28x = 7,896.42 × 2,957.40
  4. Step 4: Simplify right side
    5,264.28x = 23,352,872.51
  5. Step 5: Solve for x
    x = 23,352,872.51/5,264.28
  6. Step 6: Final answer
    x = 4,436.10

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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.