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Finding the Fourth Proportional to 5,615.77, 7,749.81 and 3,097.98

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Solution

The fourth proportional to 5,615.77, 7,749.81 and 3,097.98 is: 4,275.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,615.77 : 7,749.81 = 3,097.98 : x
  2. Step 2: Convert to fraction form
    5,615.77/7,749.81 = 3,097.98/x
  3. Step 3: Cross multiply
    5,615.77x = 7,749.81 × 3,097.98
  4. Step 4: Simplify right side
    5,615.77x = 24,008,756.38
  5. Step 5: Solve for x
    x = 24,008,756.38/5,615.77
  6. Step 6: Final answer
    x = 4,275.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.