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Finding the Fourth Proportional to 8,749.66, 12,041.79 and 8,041.54

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Solution

The fourth proportional to 8,749.66, 12,041.79 and 8,041.54 is: 11,067.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,749.66 : 12,041.79 = 8,041.54 : x
  2. Step 2: Convert to fraction form
    8,749.66/12,041.79 = 8,041.54/x
  3. Step 3: Cross multiply
    8,749.66x = 12,041.79 × 8,041.54
  4. Step 4: Simplify right side
    8,749.66x = 96,834,535.96
  5. Step 5: Solve for x
    x = 96,834,535.96/8,749.66
  6. Step 6: Final answer
    x = 11,067.23

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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.