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Finding the Fourth Proportional to 7,888.96, 11,835.04 and 2,958.48

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Solution

The fourth proportional to 7,888.96, 11,835.04 and 2,958.48 is: 4,438.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,888.96 : 11,835.04 = 2,958.48 : x
  2. Step 2: Convert to fraction form
    7,888.96/11,835.04 = 2,958.48/x
  3. Step 3: Cross multiply
    7,888.96x = 11,835.04 × 2,958.48
  4. Step 4: Simplify right side
    7,888.96x = 35,013,729.14
  5. Step 5: Solve for x
    x = 35,013,729.14/7,888.96
  6. Step 6: Final answer
    x = 4,438.32

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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.