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Finding the Fourth Proportional to 5,492.60, 7,528.94 and 5,418.80

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Solution

The fourth proportional to 5,492.60, 7,528.94 and 5,418.80 is: 7,427.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,492.60 : 7,528.94 = 5,418.80 : x
  2. Step 2: Convert to fraction form
    5,492.60/7,528.94 = 5,418.80/x
  3. Step 3: Cross multiply
    5,492.60x = 7,528.94 × 5,418.80
  4. Step 4: Simplify right side
    5,492.60x = 40,797,820.07
  5. Step 5: Solve for x
    x = 40,797,820.07/5,492.60
  6. Step 6: Final answer
    x = 7,427.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.