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Finding the Fourth Proportional to 58,564.98, 80,764.35 and 38,439.32

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Solution

The fourth proportional to 58,564.98, 80,764.35 and 38,439.32 is: 53,009.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,564.98 : 80,764.35 = 38,439.32 : x
  2. Step 2: Convert to fraction form
    58,564.98/80,764.35 = 38,439.32/x
  3. Step 3: Cross multiply
    58,564.98x = 80,764.35 × 38,439.32
  4. Step 4: Simplify right side
    58,564.98x = 3,104,526,290.42
  5. Step 5: Solve for x
    x = 3,104,526,290.42/58,564.98
  6. Step 6: Final answer
    x = 53,009.94

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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.