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Finding the Fourth Proportional to 8,409.84, 11,605.26 and 5,054.51

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Solution

The fourth proportional to 8,409.84, 11,605.26 and 5,054.51 is: 6,975.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,409.84 : 11,605.26 = 5,054.51 : x
  2. Step 2: Convert to fraction form
    8,409.84/11,605.26 = 5,054.51/x
  3. Step 3: Cross multiply
    8,409.84x = 11,605.26 × 5,054.51
  4. Step 4: Simplify right side
    8,409.84x = 58,658,902.72
  5. Step 5: Solve for x
    x = 58,658,902.72/8,409.84
  6. Step 6: Final answer
    x = 6,975.03

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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.