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Finding the Fourth Proportional to 2,698.84, 3,723.92 and 1,503.64

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Solution

The fourth proportional to 2,698.84, 3,723.92 and 1,503.64 is: 2,074.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,698.84 : 3,723.92 = 1,503.64 : x
  2. Step 2: Convert to fraction form
    2,698.84/3,723.92 = 1,503.64/x
  3. Step 3: Cross multiply
    2,698.84x = 3,723.92 × 1,503.64
  4. Step 4: Simplify right side
    2,698.84x = 5,599,435.07
  5. Step 5: Solve for x
    x = 5,599,435.07/2,698.84
  6. Step 6: Final answer
    x = 2,074.76

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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.