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Finding the Fourth Proportional to 9,574.62, 13,212.63 and 6,783.90

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Solution

The fourth proportional to 9,574.62, 13,212.63 and 6,783.90 is: 9,361.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,574.62 : 13,212.63 = 6,783.90 : x
  2. Step 2: Convert to fraction form
    9,574.62/13,212.63 = 6,783.90/x
  3. Step 3: Cross multiply
    9,574.62x = 13,212.63 × 6,783.90
  4. Step 4: Simplify right side
    9,574.62x = 89,633,160.66
  5. Step 5: Solve for x
    x = 89,633,160.66/9,574.62
  6. Step 6: Final answer
    x = 9,361.54

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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.