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Finding the Fourth Proportional to 62,285.88, 85,954.50 and 38,426.40

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Solution

The fourth proportional to 62,285.88, 85,954.50 and 38,426.40 is: 53,028.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,285.88 : 85,954.50 = 38,426.40 : x
  2. Step 2: Convert to fraction form
    62,285.88/85,954.50 = 38,426.40/x
  3. Step 3: Cross multiply
    62,285.88x = 85,954.50 × 38,426.40
  4. Step 4: Simplify right side
    62,285.88x = 3,302,921,998.80
  5. Step 5: Solve for x
    x = 3,302,921,998.80/62,285.88
  6. Step 6: Final answer
    x = 53,028.42

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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.