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Finding the Fourth Proportional to 9,368.75, 12,940.10 and 6,846.81

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Solution

The fourth proportional to 9,368.75, 12,940.10 and 6,846.81 is: 9,456.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,368.75 : 12,940.10 = 6,846.81 : x
  2. Step 2: Convert to fraction form
    9,368.75/12,940.10 = 6,846.81/x
  3. Step 3: Cross multiply
    9,368.75x = 12,940.10 × 6,846.81
  4. Step 4: Simplify right side
    9,368.75x = 88,598,371.85
  5. Step 5: Solve for x
    x = 88,598,371.85/9,368.75
  6. Step 6: Final answer
    x = 9,456.80

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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.