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Finding the Fourth Proportional to 15,073.37, 20,800.86 and 8,358.98

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Solution

The fourth proportional to 15,073.37, 20,800.86 and 8,358.98 is: 11,535.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,073.37 : 20,800.86 = 8,358.98 : x
  2. Step 2: Convert to fraction form
    15,073.37/20,800.86 = 8,358.98/x
  3. Step 3: Cross multiply
    15,073.37x = 20,800.86 × 8,358.98
  4. Step 4: Simplify right side
    15,073.37x = 173,873,868.72
  5. Step 5: Solve for x
    x = 173,873,868.72/15,073.37
  6. Step 6: Final answer
    x = 11,535.17

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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.