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Finding the Fourth Proportional to 8,482.75, 12,725.28 and 2,934.60

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Solution

The fourth proportional to 8,482.75, 12,725.28 and 2,934.60 is: 4,402.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,482.75 : 12,725.28 = 2,934.60 : x
  2. Step 2: Convert to fraction form
    8,482.75/12,725.28 = 2,934.60/x
  3. Step 3: Cross multiply
    8,482.75x = 12,725.28 × 2,934.60
  4. Step 4: Simplify right side
    8,482.75x = 37,343,606.69
  5. Step 5: Solve for x
    x = 37,343,606.69/8,482.75
  6. Step 6: Final answer
    x = 4,402.30

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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.