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Finding the Fourth Proportional to 8,755.16, 13,133.54 and 3,488.90

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Solution

The fourth proportional to 8,755.16, 13,133.54 and 3,488.90 is: 5,233.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,755.16 : 13,133.54 = 3,488.90 : x
  2. Step 2: Convert to fraction form
    8,755.16/13,133.54 = 3,488.90/x
  3. Step 3: Cross multiply
    8,755.16x = 13,133.54 × 3,488.90
  4. Step 4: Simplify right side
    8,755.16x = 45,821,607.71
  5. Step 5: Solve for x
    x = 45,821,607.71/8,755.16
  6. Step 6: Final answer
    x = 5,233.67

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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.