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Finding the Fourth Proportional to 6,148.84, 8,482.85 and 3,911.95

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Solution

The fourth proportional to 6,148.84, 8,482.85 and 3,911.95 is: 5,396.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,148.84 : 8,482.85 = 3,911.95 : x
  2. Step 2: Convert to fraction form
    6,148.84/8,482.85 = 3,911.95/x
  3. Step 3: Cross multiply
    6,148.84x = 8,482.85 × 3,911.95
  4. Step 4: Simplify right side
    6,148.84x = 33,184,485.06
  5. Step 5: Solve for x
    x = 33,184,485.06/6,148.84
  6. Step 6: Final answer
    x = 5,396.87

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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.