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Finding the Fourth Proportional to 70,051.30, 96,666.84 and 39,843.98

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Solution

The fourth proportional to 70,051.30, 96,666.84 and 39,843.98 is: 54,982.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,051.30 : 96,666.84 = 39,843.98 : x
  2. Step 2: Convert to fraction form
    70,051.30/96,666.84 = 39,843.98/x
  3. Step 3: Cross multiply
    70,051.30x = 96,666.84 × 39,843.98
  4. Step 4: Simplify right side
    70,051.30x = 3,851,591,639.62
  5. Step 5: Solve for x
    x = 3,851,591,639.62/70,051.30
  6. Step 6: Final answer
    x = 54,982.44

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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.