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Finding the Fourth Proportional to 9,392.36, 12,955.41 and 7,149.33

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Solution

The fourth proportional to 9,392.36, 12,955.41 and 7,149.33 is: 9,861.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,392.36 : 12,955.41 = 7,149.33 : x
  2. Step 2: Convert to fraction form
    9,392.36/12,955.41 = 7,149.33/x
  3. Step 3: Cross multiply
    9,392.36x = 12,955.41 × 7,149.33
  4. Step 4: Simplify right side
    9,392.36x = 92,622,501.38
  5. Step 5: Solve for x
    x = 92,622,501.38/9,392.36
  6. Step 6: Final answer
    x = 9,861.48

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Half scale
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Double scale
Find fourth proportional to 9,393.36, 12,956.79 and 7,150.33
Similar ratio
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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.