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Finding the Fourth Proportional to 2,326.53, 3,488.63 and 766.47

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Solution

The fourth proportional to 2,326.53, 3,488.63 and 766.47 is: 1,149.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,326.53 : 3,488.63 = 766.47 : x
  2. Step 2: Convert to fraction form
    2,326.53/3,488.63 = 766.47/x
  3. Step 3: Cross multiply
    2,326.53x = 3,488.63 × 766.47
  4. Step 4: Simplify right side
    2,326.53x = 2,673,926.40
  5. Step 5: Solve for x
    x = 2,673,926.40/2,326.53
  6. Step 6: Final answer
    x = 1,149.32

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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.