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Finding the Fourth Proportional to 3,169.48, 4,754.70 and 1,117

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Solution

The fourth proportional to 3,169.48, 4,754.70 and 1,117 is: 1,675.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,169.48 : 4,754.70 = 1,117 : x
  2. Step 2: Convert to fraction form
    3,169.48/4,754.70 = 1,117/x
  3. Step 3: Cross multiply
    3,169.48x = 4,754.70 × 1,117
  4. Step 4: Simplify right side
    3,169.48x = 5,310,999.90
  5. Step 5: Solve for x
    x = 5,310,999.90/3,169.48
  6. Step 6: Final answer
    x = 1,675.67

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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.