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Finding the Fourth Proportional to 57,992.40, 86,987.43 and 18,549.51

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Solution

The fourth proportional to 57,992.40, 86,987.43 and 18,549.51 is: 27,823.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,992.40 : 86,987.43 = 18,549.51 : x
  2. Step 2: Convert to fraction form
    57,992.40/86,987.43 = 18,549.51/x
  3. Step 3: Cross multiply
    57,992.40x = 86,987.43 × 18,549.51
  4. Step 4: Simplify right side
    57,992.40x = 1,613,574,202.66
  5. Step 5: Solve for x
    x = 1,613,574,202.66/57,992.40
  6. Step 6: Final answer
    x = 27,823.89

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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.