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Finding the Fourth Proportional to 21,698.04, 29,943.30 and 11,762.04

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Solution

The fourth proportional to 21,698.04, 29,943.30 and 11,762.04 is: 16,231.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,698.04 : 29,943.30 = 11,762.04 : x
  2. Step 2: Convert to fraction form
    21,698.04/29,943.30 = 11,762.04/x
  3. Step 3: Cross multiply
    21,698.04x = 29,943.30 × 11,762.04
  4. Step 4: Simplify right side
    21,698.04x = 352,194,292.33
  5. Step 5: Solve for x
    x = 352,194,292.33/21,698.04
  6. Step 6: Final answer
    x = 16,231.62

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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.