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Finding the Fourth Proportional to 19,888.67, 29,838.84 and 8,036.33

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Solution

The fourth proportional to 19,888.67, 29,838.84 and 8,036.33 is: 12,056.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,888.67 : 29,838.84 = 8,036.33 : x
  2. Step 2: Convert to fraction form
    19,888.67/29,838.84 = 8,036.33/x
  3. Step 3: Cross multiply
    19,888.67x = 29,838.84 × 8,036.33
  4. Step 4: Simplify right side
    19,888.67x = 239,794,693.26
  5. Step 5: Solve for x
    x = 239,794,693.26/19,888.67
  6. Step 6: Final answer
    x = 12,056.85

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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.