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Finding the Fourth Proportional to 8,648.28, 12,973.23 and 2,803.32

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Solution

The fourth proportional to 8,648.28, 12,973.23 and 2,803.32 is: 4,205.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,648.28 : 12,973.23 = 2,803.32 : x
  2. Step 2: Convert to fraction form
    8,648.28/12,973.23 = 2,803.32/x
  3. Step 3: Cross multiply
    8,648.28x = 12,973.23 × 2,803.32
  4. Step 4: Simplify right side
    8,648.28x = 36,368,115.12
  5. Step 5: Solve for x
    x = 36,368,115.12/8,648.28
  6. Step 6: Final answer
    x = 4,205.24

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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.