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Finding the Fourth Proportional to 60,984.78, 84,168.54 and 38,326.86

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Solution

The fourth proportional to 60,984.78, 84,168.54 and 38,326.86 is: 52,897.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,984.78 : 84,168.54 = 38,326.86 : x
  2. Step 2: Convert to fraction form
    60,984.78/84,168.54 = 38,326.86/x
  3. Step 3: Cross multiply
    60,984.78x = 84,168.54 × 38,326.86
  4. Step 4: Simplify right side
    60,984.78x = 3,225,915,848.98
  5. Step 5: Solve for x
    x = 3,225,915,848.98/60,984.78
  6. Step 6: Final answer
    x = 52,897.06

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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.