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Finding the Fourth Proportional to 57,089.78, 78,800.74 and 33,227.06

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Solution

The fourth proportional to 57,089.78, 78,800.74 and 33,227.06 is: 45,863.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,089.78 : 78,800.74 = 33,227.06 : x
  2. Step 2: Convert to fraction form
    57,089.78/78,800.74 = 33,227.06/x
  3. Step 3: Cross multiply
    57,089.78x = 78,800.74 × 33,227.06
  4. Step 4: Simplify right side
    57,089.78x = 2,618,316,438.95
  5. Step 5: Solve for x
    x = 2,618,316,438.95/57,089.78
  6. Step 6: Final answer
    x = 45,863.14

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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.