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Finding the Fourth Proportional to 54,699.75, 75,485.70 and 29,549.25

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Solution

The fourth proportional to 54,699.75, 75,485.70 and 29,549.25 is: 40,777.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,699.75 : 75,485.70 = 29,549.25 : x
  2. Step 2: Convert to fraction form
    54,699.75/75,485.70 = 29,549.25/x
  3. Step 3: Cross multiply
    54,699.75x = 75,485.70 × 29,549.25
  4. Step 4: Simplify right side
    54,699.75x = 2,230,545,820.73
  5. Step 5: Solve for x
    x = 2,230,545,820.73/54,699.75
  6. Step 6: Final answer
    x = 40,777.99

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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.