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Finding the Fourth Proportional to 6,871.50, 10,296.45 and 4,787.10

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Solution

The fourth proportional to 6,871.50, 10,296.45 and 4,787.10 is: 7,173.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,871.50 : 10,296.45 = 4,787.10 : x
  2. Step 2: Convert to fraction form
    6,871.50/10,296.45 = 4,787.10/x
  3. Step 3: Cross multiply
    6,871.50x = 10,296.45 × 4,787.10
  4. Step 4: Simplify right side
    6,871.50x = 49,290,135.80
  5. Step 5: Solve for x
    x = 49,290,135.80/6,871.50
  6. Step 6: Final answer
    x = 7,173.13

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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.