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Finding the Fourth Proportional to 60,107.76, 82,920.78 and 38,893.88

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Solution

The fourth proportional to 60,107.76, 82,920.78 and 38,893.88 is: 53,655.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,107.76 : 82,920.78 = 38,893.88 : x
  2. Step 2: Convert to fraction form
    60,107.76/82,920.78 = 38,893.88/x
  3. Step 3: Cross multiply
    60,107.76x = 82,920.78 × 38,893.88
  4. Step 4: Simplify right side
    60,107.76x = 3,225,110,866.83
  5. Step 5: Solve for x
    x = 3,225,110,866.83/60,107.76
  6. Step 6: Final answer
    x = 53,655.48

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1.5x scale

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.