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Finding the Fourth Proportional to 1,582.68, 2,373.21 and 716.52

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Solution

The fourth proportional to 1,582.68, 2,373.21 and 716.52 is: 1,074.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,582.68 : 2,373.21 = 716.52 : x
  2. Step 2: Convert to fraction form
    1,582.68/2,373.21 = 716.52/x
  3. Step 3: Cross multiply
    1,582.68x = 2,373.21 × 716.52
  4. Step 4: Simplify right side
    1,582.68x = 1,700,452.43
  5. Step 5: Solve for x
    x = 1,700,452.43/1,582.68
  6. Step 6: Final answer
    x = 1,074.41

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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.