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Finding the Fourth Proportional to 53,347.20, 80,020.80 and 44,890.80

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Solution

The fourth proportional to 53,347.20, 80,020.80 and 44,890.80 is: 67,336.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,347.20 : 80,020.80 = 44,890.80 : x
  2. Step 2: Convert to fraction form
    53,347.20/80,020.80 = 44,890.80/x
  3. Step 3: Cross multiply
    53,347.20x = 80,020.80 × 44,890.80
  4. Step 4: Simplify right side
    53,347.20x = 3,592,197,728.64
  5. Step 5: Solve for x
    x = 3,592,197,728.64/53,347.20
  6. Step 6: Final answer
    x = 67,336.20

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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.