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Finding the Fourth Proportional to 2,132.99, 3,199.46 and 572.94

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Solution

The fourth proportional to 2,132.99, 3,199.46 and 572.94 is: 859.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132.99 : 3,199.46 = 572.94 : x
  2. Step 2: Convert to fraction form
    2,132.99/3,199.46 = 572.94/x
  3. Step 3: Cross multiply
    2,132.99x = 3,199.46 × 572.94
  4. Step 4: Simplify right side
    2,132.99x = 1,833,095.75
  5. Step 5: Solve for x
    x = 1,833,095.75/2,132.99
  6. Step 6: Final answer
    x = 859.40

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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.