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Finding the Fourth Proportional to 68,995.80, 103,493.70 and 29,556.90

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Solution

The fourth proportional to 68,995.80, 103,493.70 and 29,556.90 is: 44,335.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,995.80 : 103,493.70 = 29,556.90 : x
  2. Step 2: Convert to fraction form
    68,995.80/103,493.70 = 29,556.90/x
  3. Step 3: Cross multiply
    68,995.80x = 103,493.70 × 29,556.90
  4. Step 4: Simplify right side
    68,995.80x = 3,058,952,941.53
  5. Step 5: Solve for x
    x = 3,058,952,941.53/68,995.80
  6. Step 6: Final answer
    x = 44,335.35

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1.5x scale

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.