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Finding the Fourth Proportional to 58,145.40, 86,999.40 and 38,462.40

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Solution

The fourth proportional to 58,145.40, 86,999.40 and 38,462.40 is: 57,548.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,145.40 : 86,999.40 = 38,462.40 : x
  2. Step 2: Convert to fraction form
    58,145.40/86,999.40 = 38,462.40/x
  3. Step 3: Cross multiply
    58,145.40x = 86,999.40 × 38,462.40
  4. Step 4: Simplify right side
    58,145.40x = 3,346,205,722.56
  5. Step 5: Solve for x
    x = 3,346,205,722.56/58,145.40
  6. Step 6: Final answer
    x = 57,548.93

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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.