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Finding the Fourth Proportional to 3,973.03, 5,482.43 and 2,180.22

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Solution

The fourth proportional to 3,973.03, 5,482.43 and 2,180.22 is: 3,008.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,973.03 : 5,482.43 = 2,180.22 : x
  2. Step 2: Convert to fraction form
    3,973.03/5,482.43 = 2,180.22/x
  3. Step 3: Cross multiply
    3,973.03x = 5,482.43 × 2,180.22
  4. Step 4: Simplify right side
    3,973.03x = 11,952,892.51
  5. Step 5: Solve for x
    x = 11,952,892.51/3,973.03
  6. Step 6: Final answer
    x = 3,008.51

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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.