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Finding the Fourth Proportional to 8,551.15, 11,800.79 and 5,364.58

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Solution

The fourth proportional to 8,551.15, 11,800.79 and 5,364.58 is: 7,403.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,551.15 : 11,800.79 = 5,364.58 : x
  2. Step 2: Convert to fraction form
    8,551.15/11,800.79 = 5,364.58/x
  3. Step 3: Cross multiply
    8,551.15x = 11,800.79 × 5,364.58
  4. Step 4: Simplify right side
    8,551.15x = 63,306,267.94
  5. Step 5: Solve for x
    x = 63,306,267.94/8,551.15
  6. Step 6: Final answer
    x = 7,403.24

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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.