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Finding the Fourth Proportional to 5,211.94, 7,193.16 and 2,973.30

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Solution

The fourth proportional to 5,211.94, 7,193.16 and 2,973.30 is: 4,103.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.94 : 7,193.16 = 2,973.30 : x
  2. Step 2: Convert to fraction form
    5,211.94/7,193.16 = 2,973.30/x
  3. Step 3: Cross multiply
    5,211.94x = 7,193.16 × 2,973.30
  4. Step 4: Simplify right side
    5,211.94x = 21,387,422.63
  5. Step 5: Solve for x
    x = 21,387,422.63/5,211.94
  6. Step 6: Final answer
    x = 4,103.54

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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.