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Finding the Fourth Proportional to 52,570.70, 78,856.05 and 33,908.30

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Solution

The fourth proportional to 52,570.70, 78,856.05 and 33,908.30 is: 50,862.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,570.70 : 78,856.05 = 33,908.30 : x
  2. Step 2: Convert to fraction form
    52,570.70/78,856.05 = 33,908.30/x
  3. Step 3: Cross multiply
    52,570.70x = 78,856.05 × 33,908.30
  4. Step 4: Simplify right side
    52,570.70x = 2,673,874,600.22
  5. Step 5: Solve for x
    x = 2,673,874,600.22/52,570.70
  6. Step 6: Final answer
    x = 50,862.45

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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.