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Finding the Fourth Proportional to 17,967.30, 26,999.55 and 15,828.90

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Solution

The fourth proportional to 17,967.30, 26,999.55 and 15,828.90 is: 23,786.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,967.30 : 26,999.55 = 15,828.90 : x
  2. Step 2: Convert to fraction form
    17,967.30/26,999.55 = 15,828.90/x
  3. Step 3: Cross multiply
    17,967.30x = 26,999.55 × 15,828.90
  4. Step 4: Simplify right side
    17,967.30x = 427,373,177.00
  5. Step 5: Solve for x
    x = 427,373,177.00/17,967.30
  6. Step 6: Final answer
    x = 23,786.17

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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.