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Finding the Fourth Proportional to 58,133.80, 87,027.90 and 38,434.60

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Solution

The fourth proportional to 58,133.80, 87,027.90 and 38,434.60 is: 57,537.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,133.80 : 87,027.90 = 38,434.60 : x
  2. Step 2: Convert to fraction form
    58,133.80/87,027.90 = 38,434.60/x
  3. Step 3: Cross multiply
    58,133.80x = 87,027.90 × 38,434.60
  4. Step 4: Simplify right side
    58,133.80x = 3,344,882,525.34
  5. Step 5: Solve for x
    x = 3,344,882,525.34/58,133.80
  6. Step 6: Final answer
    x = 57,537.65

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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.