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Finding the Fourth Proportional to 38,866.96, 53,636.16 and 22,099.96

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Solution

The fourth proportional to 38,866.96, 53,636.16 and 22,099.96 is: 30,497.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,866.96 : 53,636.16 = 22,099.96 : x
  2. Step 2: Convert to fraction form
    38,866.96/53,636.16 = 22,099.96/x
  3. Step 3: Cross multiply
    38,866.96x = 53,636.16 × 22,099.96
  4. Step 4: Simplify right side
    38,866.96x = 1,185,356,990.55
  5. Step 5: Solve for x
    x = 1,185,356,990.55/38,866.96
  6. Step 6: Final answer
    x = 30,497.81

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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.