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Finding the Fourth Proportional to 52,009.80, 78,014.70 and 49,968.60

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Solution

The fourth proportional to 52,009.80, 78,014.70 and 49,968.60 is: 74,952.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,009.80 : 78,014.70 = 49,968.60 : x
  2. Step 2: Convert to fraction form
    52,009.80/78,014.70 = 49,968.60/x
  3. Step 3: Cross multiply
    52,009.80x = 78,014.70 × 49,968.60
  4. Step 4: Simplify right side
    52,009.80x = 3,898,285,338.42
  5. Step 5: Solve for x
    x = 3,898,285,338.42/52,009.80
  6. Step 6: Final answer
    x = 74,952.90

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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.