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Finding the Fourth Proportional to 1,675.98, 2,312.82 and 967.86

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Solution

The fourth proportional to 1,675.98, 2,312.82 and 967.86 is: 1,335.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,675.98 : 2,312.82 = 967.86 : x
  2. Step 2: Convert to fraction form
    1,675.98/2,312.82 = 967.86/x
  3. Step 3: Cross multiply
    1,675.98x = 2,312.82 × 967.86
  4. Step 4: Simplify right side
    1,675.98x = 2,238,485.97
  5. Step 5: Solve for x
    x = 2,238,485.97/1,675.98
  6. Step 6: Final answer
    x = 1,335.63

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1.5x scale

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.