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Finding the Fourth Proportional to 57,250.70, 85,876.05 and 50,908.40

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Solution

The fourth proportional to 57,250.70, 85,876.05 and 50,908.40 is: 76,362.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,250.70 : 85,876.05 = 50,908.40 : x
  2. Step 2: Convert to fraction form
    57,250.70/85,876.05 = 50,908.40/x
  3. Step 3: Cross multiply
    57,250.70x = 85,876.05 × 50,908.40
  4. Step 4: Simplify right side
    57,250.70x = 4,371,812,303.82
  5. Step 5: Solve for x
    x = 4,371,812,303.82/57,250.70
  6. Step 6: Final answer
    x = 76,362.60

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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.