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Finding the Fourth Proportional to 8,986.56, 13,471.80 and 4,303.68

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Solution

The fourth proportional to 8,986.56, 13,471.80 and 4,303.68 is: 6,451.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,986.56 : 13,471.80 = 4,303.68 : x
  2. Step 2: Convert to fraction form
    8,986.56/13,471.80 = 4,303.68/x
  3. Step 3: Cross multiply
    8,986.56x = 13,471.80 × 4,303.68
  4. Step 4: Simplify right side
    8,986.56x = 57,978,316.22
  5. Step 5: Solve for x
    x = 57,978,316.22/8,986.56
  6. Step 6: Final answer
    x = 6,451.67

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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.