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Finding the Fourth Proportional to 36,200.40, 54,203.40 and 28,359.60

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Solution

The fourth proportional to 36,200.40, 54,203.40 and 28,359.60 is: 42,463.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,200.40 : 54,203.40 = 28,359.60 : x
  2. Step 2: Convert to fraction form
    36,200.40/54,203.40 = 28,359.60/x
  3. Step 3: Cross multiply
    36,200.40x = 54,203.40 × 28,359.60
  4. Step 4: Simplify right side
    36,200.40x = 1,537,186,742.64
  5. Step 5: Solve for x
    x = 1,537,186,742.64/36,200.40
  6. Step 6: Final answer
    x = 42,463.25

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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.