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Finding the Fourth Proportional to 69,455.56, 95,842.98 and 39,243.50

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Solution

The fourth proportional to 69,455.56, 95,842.98 and 39,243.50 is: 54,152.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,455.56 : 95,842.98 = 39,243.50 : x
  2. Step 2: Convert to fraction form
    69,455.56/95,842.98 = 39,243.50/x
  3. Step 3: Cross multiply
    69,455.56x = 95,842.98 × 39,243.50
  4. Step 4: Simplify right side
    69,455.56x = 3,761,213,985.63
  5. Step 5: Solve for x
    x = 3,761,213,985.63/69,455.56
  6. Step 6: Final answer
    x = 54,152.81

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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.