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Finding the Fourth Proportional to 8,728.92, 13,090.98 and 5,955.06

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Solution

The fourth proportional to 8,728.92, 13,090.98 and 5,955.06 is: 8,930.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,728.92 : 13,090.98 = 5,955.06 : x
  2. Step 2: Convert to fraction form
    8,728.92/13,090.98 = 5,955.06/x
  3. Step 3: Cross multiply
    8,728.92x = 13,090.98 × 5,955.06
  4. Step 4: Simplify right side
    8,728.92x = 77,957,571.36
  5. Step 5: Solve for x
    x = 77,957,571.36/8,728.92
  6. Step 6: Final answer
    x = 8,930.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.