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Finding the Fourth Proportional to 57,259.20, 85,888.80 and 50,916.90

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Solution

The fourth proportional to 57,259.20, 85,888.80 and 50,916.90 is: 76,375.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,259.20 : 85,888.80 = 50,916.90 : x
  2. Step 2: Convert to fraction form
    57,259.20/85,888.80 = 50,916.90/x
  3. Step 3: Cross multiply
    57,259.20x = 85,888.80 × 50,916.90
  4. Step 4: Simplify right side
    57,259.20x = 4,373,191,440.72
  5. Step 5: Solve for x
    x = 4,373,191,440.72/57,259.20
  6. Step 6: Final answer
    x = 76,375.35

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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.