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Finding the Fourth Proportional to 3,360.61, 4,636.92 and 1,868.21

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Solution

The fourth proportional to 3,360.61, 4,636.92 and 1,868.21 is: 2,577.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,360.61 : 4,636.92 = 1,868.21 : x
  2. Step 2: Convert to fraction form
    3,360.61/4,636.92 = 1,868.21/x
  3. Step 3: Cross multiply
    3,360.61x = 4,636.92 × 1,868.21
  4. Step 4: Simplify right side
    3,360.61x = 8,662,740.31
  5. Step 5: Solve for x
    x = 8,662,740.31/3,360.61
  6. Step 6: Final answer
    x = 2,577.73

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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.