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Finding the Fourth Proportional to 3,476.67, 4,797.75 and 1,985.46

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Solution

The fourth proportional to 3,476.67, 4,797.75 and 1,985.46 is: 2,739.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,476.67 : 4,797.75 = 1,985.46 : x
  2. Step 2: Convert to fraction form
    3,476.67/4,797.75 = 1,985.46/x
  3. Step 3: Cross multiply
    3,476.67x = 4,797.75 × 1,985.46
  4. Step 4: Simplify right side
    3,476.67x = 9,525,740.72
  5. Step 5: Solve for x
    x = 9,525,740.72/3,476.67
  6. Step 6: Final answer
    x = 2,739.90

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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.