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Finding the Fourth Proportional to 28,828.13, 43,249.48 and 8,051.63

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Solution

The fourth proportional to 28,828.13, 43,249.48 and 8,051.63 is: 12,079.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,828.13 : 43,249.48 = 8,051.63 : x
  2. Step 2: Convert to fraction form
    28,828.13/43,249.48 = 8,051.63/x
  3. Step 3: Cross multiply
    28,828.13x = 43,249.48 × 8,051.63
  4. Step 4: Simplify right side
    28,828.13x = 348,228,574.28
  5. Step 5: Solve for x
    x = 348,228,574.28/28,828.13
  6. Step 6: Final answer
    x = 12,079.47

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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.