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Finding the Fourth Proportional to 57,486.98, 86,243.43 and 17,509.53

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Solution

The fourth proportional to 57,486.98, 86,243.43 and 17,509.53 is: 26,268.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,486.98 : 86,243.43 = 17,509.53 : x
  2. Step 2: Convert to fraction form
    57,486.98/86,243.43 = 17,509.53/x
  3. Step 3: Cross multiply
    57,486.98x = 86,243.43 × 17,509.53
  4. Step 4: Simplify right side
    57,486.98x = 1,510,082,313.96
  5. Step 5: Solve for x
    x = 1,510,082,313.96/57,486.98
  6. Step 6: Final answer
    x = 26,268.25

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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.