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Finding the Fourth Proportional to 53,414.60, 80,006.70 and 47,577.80

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Solution

The fourth proportional to 53,414.60, 80,006.70 and 47,577.80 is: 71,264.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,414.60 : 80,006.70 = 47,577.80 : x
  2. Step 2: Convert to fraction form
    53,414.60/80,006.70 = 47,577.80/x
  3. Step 3: Cross multiply
    53,414.60x = 80,006.70 × 47,577.80
  4. Step 4: Simplify right side
    53,414.60x = 3,806,542,771.26
  5. Step 5: Solve for x
    x = 3,806,542,771.26/53,414.60
  6. Step 6: Final answer
    x = 71,264.09

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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.