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Finding the Fourth Proportional to 14,424.79, 19,902.83 and 8,759.38

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Solution

The fourth proportional to 14,424.79, 19,902.83 and 8,759.38 is: 12,085.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,424.79 : 19,902.83 = 8,759.38 : x
  2. Step 2: Convert to fraction form
    14,424.79/19,902.83 = 8,759.38/x
  3. Step 3: Cross multiply
    14,424.79x = 19,902.83 × 8,759.38
  4. Step 4: Simplify right side
    14,424.79x = 174,336,357.49
  5. Step 5: Solve for x
    x = 174,336,357.49/14,424.79
  6. Step 6: Final answer
    x = 12,085.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.