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Finding the Fourth Proportional to 52,454.80, 78,682.20 and 47,270.80

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Solution

The fourth proportional to 52,454.80, 78,682.20 and 47,270.80 is: 70,906.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,454.80 : 78,682.20 = 47,270.80 : x
  2. Step 2: Convert to fraction form
    52,454.80/78,682.20 = 47,270.80/x
  3. Step 3: Cross multiply
    52,454.80x = 78,682.20 × 47,270.80
  4. Step 4: Simplify right side
    52,454.80x = 3,719,370,539.76
  5. Step 5: Solve for x
    x = 3,719,370,539.76/52,454.80
  6. Step 6: Final answer
    x = 70,906.20

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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.