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Finding the Fourth Proportional to 52,546.80, 78,820.20 and 36,800.40

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Solution

The fourth proportional to 52,546.80, 78,820.20 and 36,800.40 is: 55,200.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,546.80 : 78,820.20 = 36,800.40 : x
  2. Step 2: Convert to fraction form
    52,546.80/78,820.20 = 36,800.40/x
  3. Step 3: Cross multiply
    52,546.80x = 78,820.20 × 36,800.40
  4. Step 4: Simplify right side
    52,546.80x = 2,900,614,888.08
  5. Step 5: Solve for x
    x = 2,900,614,888.08/52,546.80
  6. Step 6: Final answer
    x = 55,200.60

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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.