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Finding the Fourth Proportional to 3,672.96, 5,509.49 and 1,075.95

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Solution

The fourth proportional to 3,672.96, 5,509.49 and 1,075.95 is: 1,613.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,672.96 : 5,509.49 = 1,075.95 : x
  2. Step 2: Convert to fraction form
    3,672.96/5,509.49 = 1,075.95/x
  3. Step 3: Cross multiply
    3,672.96x = 5,509.49 × 1,075.95
  4. Step 4: Simplify right side
    3,672.96x = 5,927,930.39
  5. Step 5: Solve for x
    x = 5,927,930.39/3,672.96
  6. Step 6: Final answer
    x = 1,613.94

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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.