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Finding the Fourth Proportional to 4,899.62, 6,761.61 and 2,661.63

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Solution

The fourth proportional to 4,899.62, 6,761.61 and 2,661.63 is: 3,673.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,899.62 : 6,761.61 = 2,661.63 : x
  2. Step 2: Convert to fraction form
    4,899.62/6,761.61 = 2,661.63/x
  3. Step 3: Cross multiply
    4,899.62x = 6,761.61 × 2,661.63
  4. Step 4: Simplify right side
    4,899.62x = 17,996,904.02
  5. Step 5: Solve for x
    x = 17,996,904.02/4,899.62
  6. Step 6: Final answer
    x = 3,673.13

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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.