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Finding the Fourth Proportional to 43,950.24, 65,925.12 and 12,786.24

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Solution

The fourth proportional to 43,950.24, 65,925.12 and 12,786.24 is: 19,179.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,950.24 : 65,925.12 = 12,786.24 : x
  2. Step 2: Convert to fraction form
    43,950.24/65,925.12 = 12,786.24/x
  3. Step 3: Cross multiply
    43,950.24x = 65,925.12 × 12,786.24
  4. Step 4: Simplify right side
    43,950.24x = 842,934,406.35
  5. Step 5: Solve for x
    x = 842,934,406.35/43,950.24
  6. Step 6: Final answer
    x = 19,179.29

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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.