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Finding the Fourth Proportional to 52,687.98, 78,995.01 and 19,403.78

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Solution

The fourth proportional to 52,687.98, 78,995.01 and 19,403.78 is: 29,092.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,687.98 : 78,995.01 = 19,403.78 : x
  2. Step 2: Convert to fraction form
    52,687.98/78,995.01 = 19,403.78/x
  3. Step 3: Cross multiply
    52,687.98x = 78,995.01 × 19,403.78
  4. Step 4: Simplify right side
    52,687.98x = 1,532,801,795.14
  5. Step 5: Solve for x
    x = 1,532,801,795.14/52,687.98
  6. Step 6: Final answer
    x = 29,092.06

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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.