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Finding the Fourth Proportional to 4,689.48, 7,034.70 and 1,770.24

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Solution

The fourth proportional to 4,689.48, 7,034.70 and 1,770.24 is: 2,655.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,689.48 : 7,034.70 = 1,770.24 : x
  2. Step 2: Convert to fraction form
    4,689.48/7,034.70 = 1,770.24/x
  3. Step 3: Cross multiply
    4,689.48x = 7,034.70 × 1,770.24
  4. Step 4: Simplify right side
    4,689.48x = 12,453,107.33
  5. Step 5: Solve for x
    x = 12,453,107.33/4,689.48
  6. Step 6: Final answer
    x = 2,655.54

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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.