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Finding the Fourth Proportional to 52,455.80, 78,683.70 and 33,793.40

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Solution

The fourth proportional to 52,455.80, 78,683.70 and 33,793.40 is: 50,690.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,455.80 : 78,683.70 = 33,793.40 : x
  2. Step 2: Convert to fraction form
    52,455.80/78,683.70 = 33,793.40/x
  3. Step 3: Cross multiply
    52,455.80x = 78,683.70 × 33,793.40
  4. Step 4: Simplify right side
    52,455.80x = 2,658,989,747.58
  5. Step 5: Solve for x
    x = 2,658,989,747.58/52,455.80
  6. Step 6: Final answer
    x = 50,690.10

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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.