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Finding the Fourth Proportional to 5,769.45, 7,961.27 and 3,411.45

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Solution

The fourth proportional to 5,769.45, 7,961.27 and 3,411.45 is: 4,707.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,769.45 : 7,961.27 = 3,411.45 : x
  2. Step 2: Convert to fraction form
    5,769.45/7,961.27 = 3,411.45/x
  3. Step 3: Cross multiply
    5,769.45x = 7,961.27 × 3,411.45
  4. Step 4: Simplify right side
    5,769.45x = 27,159,457.48
  5. Step 5: Solve for x
    x = 27,159,457.48/5,769.45
  6. Step 6: Final answer
    x = 4,707.46

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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.