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Finding the Fourth Proportional to 3,608.76, 4,980.12 and 2,036.96

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Solution

The fourth proportional to 3,608.76, 4,980.12 and 2,036.96 is: 2,811.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,608.76 : 4,980.12 = 2,036.96 : x
  2. Step 2: Convert to fraction form
    3,608.76/4,980.12 = 2,036.96/x
  3. Step 3: Cross multiply
    3,608.76x = 4,980.12 × 2,036.96
  4. Step 4: Simplify right side
    3,608.76x = 10,144,305.24
  5. Step 5: Solve for x
    x = 10,144,305.24/3,608.76
  6. Step 6: Final answer
    x = 2,811.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.