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Finding the Fourth Proportional to 53,405.20, 80,107.80 and 48,566.80

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Solution

The fourth proportional to 53,405.20, 80,107.80 and 48,566.80 is: 72,850.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,405.20 : 80,107.80 = 48,566.80 : x
  2. Step 2: Convert to fraction form
    53,405.20/80,107.80 = 48,566.80/x
  3. Step 3: Cross multiply
    53,405.20x = 80,107.80 × 48,566.80
  4. Step 4: Simplify right side
    53,405.20x = 3,890,579,501.04
  5. Step 5: Solve for x
    x = 3,890,579,501.04/53,405.20
  6. Step 6: Final answer
    x = 72,850.20

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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.