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Finding the Fourth Proportional to 6,487.36, 8,956.16 and 4,100.48

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Solution

The fourth proportional to 6,487.36, 8,956.16 and 4,100.48 is: 5,660.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,487.36 : 8,956.16 = 4,100.48 : x
  2. Step 2: Convert to fraction form
    6,487.36/8,956.16 = 4,100.48/x
  3. Step 3: Cross multiply
    6,487.36x = 8,956.16 × 4,100.48
  4. Step 4: Simplify right side
    6,487.36x = 36,724,554.96
  5. Step 5: Solve for x
    x = 36,724,554.96/6,487.36
  6. Step 6: Final answer
    x = 5,660.94

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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.