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Finding the Fourth Proportional to 8,083.19, 12,103.65 and 7,590.50

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Solution

The fourth proportional to 8,083.19, 12,103.65 and 7,590.50 is: 11,365.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,083.19 : 12,103.65 = 7,590.50 : x
  2. Step 2: Convert to fraction form
    8,083.19/12,103.65 = 7,590.50/x
  3. Step 3: Cross multiply
    8,083.19x = 12,103.65 × 7,590.50
  4. Step 4: Simplify right side
    8,083.19x = 91,872,694.81
  5. Step 5: Solve for x
    x = 91,872,694.81/8,083.19
  6. Step 6: Final answer
    x = 11,365.90

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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.