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Finding the Fourth Proportional to 12,358.58, 18,539.08 and 3,593.57

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Solution

The fourth proportional to 12,358.58, 18,539.08 and 3,593.57 is: 5,390.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,358.58 : 18,539.08 = 3,593.57 : x
  2. Step 2: Convert to fraction form
    12,358.58/18,539.08 = 3,593.57/x
  3. Step 3: Cross multiply
    12,358.58x = 18,539.08 × 3,593.57
  4. Step 4: Simplify right side
    12,358.58x = 66,621,380.04
  5. Step 5: Solve for x
    x = 66,621,380.04/12,358.58
  6. Step 6: Final answer
    x = 5,390.70

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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.