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Finding the Fourth Proportional to 8,041.99, 12,063.90 and 7,215.19

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Solution

The fourth proportional to 8,041.99, 12,063.90 and 7,215.19 is: 10,823.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,041.99 : 12,063.90 = 7,215.19 : x
  2. Step 2: Convert to fraction form
    8,041.99/12,063.90 = 7,215.19/x
  3. Step 3: Cross multiply
    8,041.99x = 12,063.90 × 7,215.19
  4. Step 4: Simplify right side
    8,041.99x = 87,043,330.64
  5. Step 5: Solve for x
    x = 87,043,330.64/8,041.99
  6. Step 6: Final answer
    x = 10,823.61

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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.