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Finding the Fourth Proportional to 2,697.76, 4,047.32 and 848.80

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Solution

The fourth proportional to 2,697.76, 4,047.32 and 848.80 is: 1,273.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,697.76 : 4,047.32 = 848.80 : x
  2. Step 2: Convert to fraction form
    2,697.76/4,047.32 = 848.80/x
  3. Step 3: Cross multiply
    2,697.76x = 4,047.32 × 848.80
  4. Step 4: Simplify right side
    2,697.76x = 3,435,365.22
  5. Step 5: Solve for x
    x = 3,435,365.22/2,697.76
  6. Step 6: Final answer
    x = 1,273.41

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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.