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Finding the Fourth Proportional to 61,992.54, 85,584.87 and 47,429.35

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Solution

The fourth proportional to 61,992.54, 85,584.87 and 47,429.35 is: 65,479.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,992.54 : 85,584.87 = 47,429.35 : x
  2. Step 2: Convert to fraction form
    61,992.54/85,584.87 = 47,429.35/x
  3. Step 3: Cross multiply
    61,992.54x = 85,584.87 × 47,429.35
  4. Step 4: Simplify right side
    61,992.54x = 4,059,234,539.97
  5. Step 5: Solve for x
    x = 4,059,234,539.97/61,992.54
  6. Step 6: Final answer
    x = 65,479.40

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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.