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Finding the Fourth Proportional to 9,791.68, 14,688.60 and 3,948.88

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Solution

The fourth proportional to 9,791.68, 14,688.60 and 3,948.88 is: 5,923.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,791.68 : 14,688.60 = 3,948.88 : x
  2. Step 2: Convert to fraction form
    9,791.68/14,688.60 = 3,948.88/x
  3. Step 3: Cross multiply
    9,791.68x = 14,688.60 × 3,948.88
  4. Step 4: Simplify right side
    9,791.68x = 58,003,518.77
  5. Step 5: Solve for x
    x = 58,003,518.77/9,791.68
  6. Step 6: Final answer
    x = 5,923.76

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1.5x scale

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.