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Finding the Fourth Proportional to 9,400.57, 12,973.31 and 5,208.73

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Solution

The fourth proportional to 9,400.57, 12,973.31 and 5,208.73 is: 7,188.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,400.57 : 12,973.31 = 5,208.73 : x
  2. Step 2: Convert to fraction form
    9,400.57/12,973.31 = 5,208.73/x
  3. Step 3: Cross multiply
    9,400.57x = 12,973.31 × 5,208.73
  4. Step 4: Simplify right side
    9,400.57x = 67,574,442.95
  5. Step 5: Solve for x
    x = 67,574,442.95/9,400.57
  6. Step 6: Final answer
    x = 7,188.33

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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.