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Finding the Fourth Proportional to 29,881.80, 44,801.10 and 12,342.60

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Solution

The fourth proportional to 29,881.80, 44,801.10 and 12,342.60 is: 18,504.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,881.80 : 44,801.10 = 12,342.60 : x
  2. Step 2: Convert to fraction form
    29,881.80/44,801.10 = 12,342.60/x
  3. Step 3: Cross multiply
    29,881.80x = 44,801.10 × 12,342.60
  4. Step 4: Simplify right side
    29,881.80x = 552,962,056.86
  5. Step 5: Solve for x
    x = 552,962,056.86/29,881.80
  6. Step 6: Final answer
    x = 18,504.98

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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.