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Finding the Fourth Proportional to 17,990.52, 26,804.90 and 16,984.50

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Solution

The fourth proportional to 17,990.52, 26,804.90 and 16,984.50 is: 25,305.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,990.52 : 26,804.90 = 16,984.50 : x
  2. Step 2: Convert to fraction form
    17,990.52/26,804.90 = 16,984.50/x
  3. Step 3: Cross multiply
    17,990.52x = 26,804.90 × 16,984.50
  4. Step 4: Simplify right side
    17,990.52x = 455,267,739.13
  5. Step 5: Solve for x
    x = 455,267,739.13/17,990.52
  6. Step 6: Final answer
    x = 25,305.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.