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Finding the Fourth Proportional to 3,157.38, 4,735.80 and 848.88

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Solution

The fourth proportional to 3,157.38, 4,735.80 and 848.88 is: 1,273.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,157.38 : 4,735.80 = 848.88 : x
  2. Step 2: Convert to fraction form
    3,157.38/4,735.80 = 848.88/x
  3. Step 3: Cross multiply
    3,157.38x = 4,735.80 × 848.88
  4. Step 4: Simplify right side
    3,157.38x = 4,020,125.90
  5. Step 5: Solve for x
    x = 4,020,125.90/3,157.38
  6. Step 6: Final answer
    x = 1,273.25

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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.