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Finding the Fourth Proportional to 7,492.10, 11,236.80 and 4,713.80

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Solution

The fourth proportional to 7,492.10, 11,236.80 and 4,713.80 is: 7,069.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,492.10 : 11,236.80 = 4,713.80 : x
  2. Step 2: Convert to fraction form
    7,492.10/11,236.80 = 4,713.80/x
  3. Step 3: Cross multiply
    7,492.10x = 11,236.80 × 4,713.80
  4. Step 4: Simplify right side
    7,492.10x = 52,968,027.84
  5. Step 5: Solve for x
    x = 52,968,027.84/7,492.10
  6. Step 6: Final answer
    x = 7,069.85

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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.