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Finding the Fourth Proportional to 61,326.76, 91,999.74 and 19,777.96

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Solution

The fourth proportional to 61,326.76, 91,999.74 and 19,777.96 is: 29,670.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,326.76 : 91,999.74 = 19,777.96 : x
  2. Step 2: Convert to fraction form
    61,326.76/91,999.74 = 19,777.96/x
  3. Step 3: Cross multiply
    61,326.76x = 91,999.74 × 19,777.96
  4. Step 4: Simplify right side
    61,326.76x = 1,819,567,177.73
  5. Step 5: Solve for x
    x = 1,819,567,177.73/61,326.76
  6. Step 6: Final answer
    x = 29,670.04

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1.5x scale

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.