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Finding the Fourth Proportional to 50,259.80, 75,390.02 and 16,980.05

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Solution

The fourth proportional to 50,259.80, 75,390.02 and 16,980.05 is: 25,470.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,259.80 : 75,390.02 = 16,980.05 : x
  2. Step 2: Convert to fraction form
    50,259.80/75,390.02 = 16,980.05/x
  3. Step 3: Cross multiply
    50,259.80x = 75,390.02 × 16,980.05
  4. Step 4: Simplify right side
    50,259.80x = 1,280,125,847.25
  5. Step 5: Solve for x
    x = 1,280,125,847.25/50,259.80
  6. Step 6: Final answer
    x = 25,470.18

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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.