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Finding the Fourth Proportional to 19,347.77, 28,994.27 and 8,243.27

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Solution

The fourth proportional to 19,347.77, 28,994.27 and 8,243.27 is: 12,353.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,347.77 : 28,994.27 = 8,243.27 : x
  2. Step 2: Convert to fraction form
    19,347.77/28,994.27 = 8,243.27/x
  3. Step 3: Cross multiply
    19,347.77x = 28,994.27 × 8,243.27
  4. Step 4: Simplify right side
    19,347.77x = 239,007,596.06
  5. Step 5: Solve for x
    x = 239,007,596.06/19,347.77
  6. Step 6: Final answer
    x = 12,353.24

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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.