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Finding the Fourth Proportional to 27,996.80, 41,962.80 and 11,348.60

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Solution

The fourth proportional to 27,996.80, 41,962.80 and 11,348.60 is: 17,009.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,996.80 : 41,962.80 = 11,348.60 : x
  2. Step 2: Convert to fraction form
    27,996.80/41,962.80 = 11,348.60/x
  3. Step 3: Cross multiply
    27,996.80x = 41,962.80 × 11,348.60
  4. Step 4: Simplify right side
    27,996.80x = 476,219,032.08
  5. Step 5: Solve for x
    x = 476,219,032.08/27,996.80
  6. Step 6: Final answer
    x = 17,009.77

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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.