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Finding the Fourth Proportional to 8,405.56, 11,599.70 and 5,048.43

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Solution

The fourth proportional to 8,405.56, 11,599.70 and 5,048.43 is: 6,966.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,405.56 : 11,599.70 = 5,048.43 : x
  2. Step 2: Convert to fraction form
    8,405.56/11,599.70 = 5,048.43/x
  3. Step 3: Cross multiply
    8,405.56x = 11,599.70 × 5,048.43
  4. Step 4: Simplify right side
    8,405.56x = 58,560,209.16
  5. Step 5: Solve for x
    x = 58,560,209.16/8,405.56
  6. Step 6: Final answer
    x = 6,966.85

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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.