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Finding the Fourth Proportional to 52,807.70, 72,847.40 and 35,806.20

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Solution

The fourth proportional to 52,807.70, 72,847.40 and 35,806.20 is: 49,394.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,807.70 : 72,847.40 = 35,806.20 : x
  2. Step 2: Convert to fraction form
    52,807.70/72,847.40 = 35,806.20/x
  3. Step 3: Cross multiply
    52,807.70x = 72,847.40 × 35,806.20
  4. Step 4: Simplify right side
    52,807.70x = 2,608,388,394.85
  5. Step 5: Solve for x
    x = 2,608,388,394.85/52,807.70
  6. Step 6: Final answer
    x = 49,394.10

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1.5x scale

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.