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Finding the Fourth Proportional to 29,851.80, 44,783.10 and 12,323.40

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Solution

The fourth proportional to 29,851.80, 44,783.10 and 12,323.40 is: 18,487.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,851.80 : 44,783.10 = 12,323.40 : x
  2. Step 2: Convert to fraction form
    29,851.80/44,783.10 = 12,323.40/x
  3. Step 3: Cross multiply
    29,851.80x = 44,783.10 × 12,323.40
  4. Step 4: Simplify right side
    29,851.80x = 551,880,054.54
  5. Step 5: Solve for x
    x = 551,880,054.54/29,851.80
  6. Step 6: Final answer
    x = 18,487.33

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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.