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Finding the Fourth Proportional to 58,058.68, 87,083.16 and 18,605.20

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Solution

The fourth proportional to 58,058.68, 87,083.16 and 18,605.20 is: 27,906.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,058.68 : 87,083.16 = 18,605.20 : x
  2. Step 2: Convert to fraction form
    58,058.68/87,083.16 = 18,605.20/x
  3. Step 3: Cross multiply
    58,058.68x = 87,083.16 × 18,605.20
  4. Step 4: Simplify right side
    58,058.68x = 1,620,199,608.43
  5. Step 5: Solve for x
    x = 1,620,199,608.43/58,058.68
  6. Step 6: Final answer
    x = 27,906.24

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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.