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Finding the Fourth Proportional to 7,670.96, 11,479.97 and 4,858.64

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Solution

The fourth proportional to 7,670.96, 11,479.97 and 4,858.64 is: 7,271.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,670.96 : 11,479.97 = 4,858.64 : x
  2. Step 2: Convert to fraction form
    7,670.96/11,479.97 = 4,858.64/x
  3. Step 3: Cross multiply
    7,670.96x = 11,479.97 × 4,858.64
  4. Step 4: Simplify right side
    7,670.96x = 55,776,996.19
  5. Step 5: Solve for x
    x = 55,776,996.19/7,670.96
  6. Step 6: Final answer
    x = 7,271.19

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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.