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Finding the Fourth Proportional to 7,900.95, 11,840.10 and 5,804.49

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Solution

The fourth proportional to 7,900.95, 11,840.10 and 5,804.49 is: 8,698.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,900.95 : 11,840.10 = 5,804.49 : x
  2. Step 2: Convert to fraction form
    7,900.95/11,840.10 = 5,804.49/x
  3. Step 3: Cross multiply
    7,900.95x = 11,840.10 × 5,804.49
  4. Step 4: Simplify right side
    7,900.95x = 68,725,742.05
  5. Step 5: Solve for x
    x = 68,725,742.05/7,900.95
  6. Step 6: Final answer
    x = 8,698.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.