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Finding the Fourth Proportional to 28,907.20, 43,231.20 and 24,241.60

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Solution

The fourth proportional to 28,907.20, 43,231.20 and 24,241.60 is: 36,253.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,907.20 : 43,231.20 = 24,241.60 : x
  2. Step 2: Convert to fraction form
    28,907.20/43,231.20 = 24,241.60/x
  3. Step 3: Cross multiply
    28,907.20x = 43,231.20 × 24,241.60
  4. Step 4: Simplify right side
    28,907.20x = 1,047,993,457.92
  5. Step 5: Solve for x
    x = 1,047,993,457.92/28,907.20
  6. Step 6: Final answer
    x = 36,253.72

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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.