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Finding the Fourth Proportional to 8,874.10, 13,313.18 and 3,030.63

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Solution

The fourth proportional to 8,874.10, 13,313.18 and 3,030.63 is: 4,546.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,874.10 : 13,313.18 = 3,030.63 : x
  2. Step 2: Convert to fraction form
    8,874.10/13,313.18 = 3,030.63/x
  3. Step 3: Cross multiply
    8,874.10x = 13,313.18 × 3,030.63
  4. Step 4: Simplify right side
    8,874.10x = 40,347,322.70
  5. Step 5: Solve for x
    x = 40,347,322.70/8,874.10
  6. Step 6: Final answer
    x = 4,546.64

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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.