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Finding the Fourth Proportional to 19,208.66, 28,811.97 and 5,881.65

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Solution

The fourth proportional to 19,208.66, 28,811.97 and 5,881.65 is: 8,822.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,208.66 : 28,811.97 = 5,881.65 : x
  2. Step 2: Convert to fraction form
    19,208.66/28,811.97 = 5,881.65/x
  3. Step 3: Cross multiply
    19,208.66x = 28,811.97 × 5,881.65
  4. Step 4: Simplify right side
    19,208.66x = 169,461,923.35
  5. Step 5: Solve for x
    x = 169,461,923.35/19,208.66
  6. Step 6: Final answer
    x = 8,822.16

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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.