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Finding the Fourth Proportional to 58,191.41, 87,138.89 and 38,409.59

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Solution

The fourth proportional to 58,191.41, 87,138.89 and 38,409.59 is: 57,516.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,191.41 : 87,138.89 = 38,409.59 : x
  2. Step 2: Convert to fraction form
    58,191.41/87,138.89 = 38,409.59/x
  3. Step 3: Cross multiply
    58,191.41x = 87,138.89 × 38,409.59
  4. Step 4: Simplify right side
    58,191.41x = 3,346,969,207.79
  5. Step 5: Solve for x
    x = 3,346,969,207.79/58,191.41
  6. Step 6: Final answer
    x = 57,516.55

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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.