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Finding the Fourth Proportional to 52,596.20, 78,894.30 and 40,845.80

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Solution

The fourth proportional to 52,596.20, 78,894.30 and 40,845.80 is: 61,268.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,596.20 : 78,894.30 = 40,845.80 : x
  2. Step 2: Convert to fraction form
    52,596.20/78,894.30 = 40,845.80/x
  3. Step 3: Cross multiply
    52,596.20x = 78,894.30 × 40,845.80
  4. Step 4: Simplify right side
    52,596.20x = 3,222,500,798.94
  5. Step 5: Solve for x
    x = 3,222,500,798.94/52,596.20
  6. Step 6: Final answer
    x = 61,268.70

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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.