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Finding the Fourth Proportional to 4,647.70, 6,492.20 and 4,647.70

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Solution

The fourth proportional to 4,647.70, 6,492.20 and 4,647.70 is: 6,492.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,647.70 : 6,492.20 = 4,647.70 : x
  2. Step 2: Convert to fraction form
    4,647.70/6,492.20 = 4,647.70/x
  3. Step 3: Cross multiply
    4,647.70x = 6,492.20 × 4,647.70
  4. Step 4: Simplify right side
    4,647.70x = 30,173,797.94
  5. Step 5: Solve for x
    x = 30,173,797.94/4,647.70
  6. Step 6: Final answer
    x = 6,492.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.