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Finding the Fourth Proportional to 17,804.80, 26,728.80 and 9,035.20

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Solution

The fourth proportional to 17,804.80, 26,728.80 and 9,035.20 is: 13,563.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,804.80 : 26,728.80 = 9,035.20 : x
  2. Step 2: Convert to fraction form
    17,804.80/26,728.80 = 9,035.20/x
  3. Step 3: Cross multiply
    17,804.80x = 26,728.80 × 9,035.20
  4. Step 4: Simplify right side
    17,804.80x = 241,500,053.76
  5. Step 5: Solve for x
    x = 241,500,053.76/17,804.80
  6. Step 6: Final answer
    x = 13,563.76

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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.