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Finding the Fourth Proportional to 9,395.54, 12,965.77 and 5,146.54

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Solution

The fourth proportional to 9,395.54, 12,965.77 and 5,146.54 is: 7,102.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,395.54 : 12,965.77 = 5,146.54 : x
  2. Step 2: Convert to fraction form
    9,395.54/12,965.77 = 5,146.54/x
  3. Step 3: Cross multiply
    9,395.54x = 12,965.77 × 5,146.54
  4. Step 4: Simplify right side
    9,395.54x = 66,728,827.95
  5. Step 5: Solve for x
    x = 66,728,827.95/9,395.54
  6. Step 6: Final answer
    x = 7,102.18

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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.