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Finding the Fourth Proportional to 52,698.28, 72,750.18 and 40,734.60

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Solution

The fourth proportional to 52,698.28, 72,750.18 and 40,734.60 is: 56,234.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,698.28 : 72,750.18 = 40,734.60 : x
  2. Step 2: Convert to fraction form
    52,698.28/72,750.18 = 40,734.60/x
  3. Step 3: Cross multiply
    52,698.28x = 72,750.18 × 40,734.60
  4. Step 4: Simplify right side
    52,698.28x = 2,963,449,482.23
  5. Step 5: Solve for x
    x = 2,963,449,482.23/52,698.28
  6. Step 6: Final answer
    x = 56,234.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.