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Finding the Fourth Proportional to 11,859.65, 17,789.48 and 4,465.77

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Solution

The fourth proportional to 11,859.65, 17,789.48 and 4,465.77 is: 6,698.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,859.65 : 17,789.48 = 4,465.77 : x
  2. Step 2: Convert to fraction form
    11,859.65/17,789.48 = 4,465.77/x
  3. Step 3: Cross multiply
    11,859.65x = 17,789.48 × 4,465.77
  4. Step 4: Simplify right side
    11,859.65x = 79,443,703.77
  5. Step 5: Solve for x
    x = 79,443,703.77/11,859.65
  6. Step 6: Final answer
    x = 6,698.66

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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.