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Finding the Fourth Proportional to 82,557.81, 113,942.43 and 66,592.71

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Solution

The fourth proportional to 82,557.81, 113,942.43 and 66,592.71 is: 91,908.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,557.81 : 113,942.43 = 66,592.71 : x
  2. Step 2: Convert to fraction form
    82,557.81/113,942.43 = 66,592.71/x
  3. Step 3: Cross multiply
    82,557.81x = 113,942.43 × 66,592.71
  4. Step 4: Simplify right side
    82,557.81x = 7,587,735,197.69
  5. Step 5: Solve for x
    x = 7,587,735,197.69/82,557.81
  6. Step 6: Final answer
    x = 91,908.15

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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.