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Finding the Fourth Proportional to 13,723.58, 18,937.56 and 8,058.58

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Solution

The fourth proportional to 13,723.58, 18,937.56 and 8,058.58 is: 11,120.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,723.58 : 18,937.56 = 8,058.58 : x
  2. Step 2: Convert to fraction form
    13,723.58/18,937.56 = 8,058.58/x
  3. Step 3: Cross multiply
    13,723.58x = 18,937.56 × 8,058.58
  4. Step 4: Simplify right side
    13,723.58x = 152,609,842.26
  5. Step 5: Solve for x
    x = 152,609,842.26/13,723.58
  6. Step 6: Final answer
    x = 11,120.26

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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.