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Finding the Fourth Proportional to 1,267.08, 1,746.90 and 873.24

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Solution

The fourth proportional to 1,267.08, 1,746.90 and 873.24 is: 1,203.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267.08 : 1,746.90 = 873.24 : x
  2. Step 2: Convert to fraction form
    1,267.08/1,746.90 = 873.24/x
  3. Step 3: Cross multiply
    1,267.08x = 1,746.90 × 873.24
  4. Step 4: Simplify right side
    1,267.08x = 1,525,462.96
  5. Step 5: Solve for x
    x = 1,525,462.96/1,267.08
  6. Step 6: Final answer
    x = 1,203.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.