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Finding the Fourth Proportional to 48,611.30, 72,933.15 and 43,385.30

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Solution

The fourth proportional to 48,611.30, 72,933.15 and 43,385.30 is: 65,092.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,611.30 : 72,933.15 = 43,385.30 : x
  2. Step 2: Convert to fraction form
    48,611.30/72,933.15 = 43,385.30/x
  3. Step 3: Cross multiply
    48,611.30x = 72,933.15 × 43,385.30
  4. Step 4: Simplify right side
    48,611.30x = 3,164,226,592.70
  5. Step 5: Solve for x
    x = 3,164,226,592.70/48,611.30
  6. Step 6: Final answer
    x = 65,092.41

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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.