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Finding the Fourth Proportional to 1,567.43, 2,351.75 and 951.58

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Solution

The fourth proportional to 1,567.43, 2,351.75 and 951.58 is: 1,427.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,567.43 : 2,351.75 = 951.58 : x
  2. Step 2: Convert to fraction form
    1,567.43/2,351.75 = 951.58/x
  3. Step 3: Cross multiply
    1,567.43x = 2,351.75 × 951.58
  4. Step 4: Simplify right side
    1,567.43x = 2,237,878.27
  5. Step 5: Solve for x
    x = 2,237,878.27/1,567.43
  6. Step 6: Final answer
    x = 1,427.74

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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.