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Finding the Fourth Proportional to 9,361.09, 12,900.53 and 6,703.88

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Solution

The fourth proportional to 9,361.09, 12,900.53 and 6,703.88 is: 9,238.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,361.09 : 12,900.53 = 6,703.88 : x
  2. Step 2: Convert to fraction form
    9,361.09/12,900.53 = 6,703.88/x
  3. Step 3: Cross multiply
    9,361.09x = 12,900.53 × 6,703.88
  4. Step 4: Simplify right side
    9,361.09x = 86,483,629.88
  5. Step 5: Solve for x
    x = 86,483,629.88/9,361.09
  6. Step 6: Final answer
    x = 9,238.63

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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.