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Finding the Fourth Proportional to 32,775.64, 49,212.69 and 18,751.50

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Solution

The fourth proportional to 32,775.64, 49,212.69 and 18,751.50 is: 28,155.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,775.64 : 49,212.69 = 18,751.50 : x
  2. Step 2: Convert to fraction form
    32,775.64/49,212.69 = 18,751.50/x
  3. Step 3: Cross multiply
    32,775.64x = 49,212.69 × 18,751.50
  4. Step 4: Simplify right side
    32,775.64x = 922,811,756.54
  5. Step 5: Solve for x
    x = 922,811,756.54/32,775.64
  6. Step 6: Final answer
    x = 28,155.42

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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.