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Finding the Fourth Proportional to 20,494.56, 28,223.04 and 17,804.56

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Solution

The fourth proportional to 20,494.56, 28,223.04 and 17,804.56 is: 24,518.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,494.56 : 28,223.04 = 17,804.56 : x
  2. Step 2: Convert to fraction form
    20,494.56/28,223.04 = 17,804.56/x
  3. Step 3: Cross multiply
    20,494.56x = 28,223.04 × 17,804.56
  4. Step 4: Simplify right side
    20,494.56x = 502,498,809.06
  5. Step 5: Solve for x
    x = 502,498,809.06/20,494.56
  6. Step 6: Final answer
    x = 24,518.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.