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Finding the Fourth Proportional to 3,492.60, 4,818.06 and 2,974.20

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Solution

The fourth proportional to 3,492.60, 4,818.06 and 2,974.20 is: 4,102.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,492.60 : 4,818.06 = 2,974.20 : x
  2. Step 2: Convert to fraction form
    3,492.60/4,818.06 = 2,974.20/x
  3. Step 3: Cross multiply
    3,492.60x = 4,818.06 × 2,974.20
  4. Step 4: Simplify right side
    3,492.60x = 14,329,874.05
  5. Step 5: Solve for x
    x = 14,329,874.05/3,492.60
  6. Step 6: Final answer
    x = 4,102.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.