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Finding the Fourth Proportional to 3,371.70, 4,649.16 and 2,899.06

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Solution

The fourth proportional to 3,371.70, 4,649.16 and 2,899.06 is: 3,997.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,371.70 : 4,649.16 = 2,899.06 : x
  2. Step 2: Convert to fraction form
    3,371.70/4,649.16 = 2,899.06/x
  3. Step 3: Cross multiply
    3,371.70x = 4,649.16 × 2,899.06
  4. Step 4: Simplify right side
    3,371.70x = 13,478,193.79
  5. Step 5: Solve for x
    x = 13,478,193.79/3,371.70
  6. Step 6: Final answer
    x = 3,997.45

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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.