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Finding the Fourth Proportional to 5,113.96, 7,670.86 and 1,651.48

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Solution

The fourth proportional to 5,113.96, 7,670.86 and 1,651.48 is: 2,477.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,113.96 : 7,670.86 = 1,651.48 : x
  2. Step 2: Convert to fraction form
    5,113.96/7,670.86 = 1,651.48/x
  3. Step 3: Cross multiply
    5,113.96x = 7,670.86 × 1,651.48
  4. Step 4: Simplify right side
    5,113.96x = 12,668,271.87
  5. Step 5: Solve for x
    x = 12,668,271.87/5,113.96
  6. Step 6: Final answer
    x = 2,477.19

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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.