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Finding the Fourth Proportional to 7,995.60, 11,033.93 and 4,639.06

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Solution

The fourth proportional to 7,995.60, 11,033.93 and 4,639.06 is: 6,401.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,995.60 : 11,033.93 = 4,639.06 : x
  2. Step 2: Convert to fraction form
    7,995.60/11,033.93 = 4,639.06/x
  3. Step 3: Cross multiply
    7,995.60x = 11,033.93 × 4,639.06
  4. Step 4: Simplify right side
    7,995.60x = 51,187,063.31
  5. Step 5: Solve for x
    x = 51,187,063.31/7,995.60
  6. Step 6: Final answer
    x = 6,401.90

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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.