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Finding the Fourth Proportional to 58,446.48, 87,690.08 and 18,471.58

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Solution

The fourth proportional to 58,446.48, 87,690.08 and 18,471.58 is: 27,713.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,446.48 : 87,690.08 = 18,471.58 : x
  2. Step 2: Convert to fraction form
    58,446.48/87,690.08 = 18,471.58/x
  3. Step 3: Cross multiply
    58,446.48x = 87,690.08 × 18,471.58
  4. Step 4: Simplify right side
    58,446.48x = 1,619,774,327.93
  5. Step 5: Solve for x
    x = 1,619,774,327.93/58,446.48
  6. Step 6: Final answer
    x = 27,713.80

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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.