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Finding the Fourth Proportional to 4,690.12, 7,035.04 and 1,180.12

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Solution

The fourth proportional to 4,690.12, 7,035.04 and 1,180.12 is: 1,770.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,690.12 : 7,035.04 = 1,180.12 : x
  2. Step 2: Convert to fraction form
    4,690.12/7,035.04 = 1,180.12/x
  3. Step 3: Cross multiply
    4,690.12x = 7,035.04 × 1,180.12
  4. Step 4: Simplify right side
    4,690.12x = 8,302,191.40
  5. Step 5: Solve for x
    x = 8,302,191.40/4,690.12
  6. Step 6: Final answer
    x = 1,770.14

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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.