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Finding the Fourth Proportional to 17,905.88, 26,858.85 and 6,210.88

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Solution

The fourth proportional to 17,905.88, 26,858.85 and 6,210.88 is: 9,316.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,905.88 : 26,858.85 = 6,210.88 : x
  2. Step 2: Convert to fraction form
    17,905.88/26,858.85 = 6,210.88/x
  3. Step 3: Cross multiply
    17,905.88x = 26,858.85 × 6,210.88
  4. Step 4: Simplify right side
    17,905.88x = 166,816,959.99
  5. Step 5: Solve for x
    x = 166,816,959.99/17,905.88
  6. Step 6: Final answer
    x = 9,316.32

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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.