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Finding the Fourth Proportional to 12,365.64, 18,550.80 and 4,044.96

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Solution

The fourth proportional to 12,365.64, 18,550.80 and 4,044.96 is: 6,068.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,365.64 : 18,550.80 = 4,044.96 : x
  2. Step 2: Convert to fraction form
    12,365.64/18,550.80 = 4,044.96/x
  3. Step 3: Cross multiply
    12,365.64x = 18,550.80 × 4,044.96
  4. Step 4: Simplify right side
    12,365.64x = 75,037,243.97
  5. Step 5: Solve for x
    x = 75,037,243.97/12,365.64
  6. Step 6: Final answer
    x = 6,068.21

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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.