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Finding the Fourth Proportional to 57,222.60, 85,833.90 and 39,726.60

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Solution

The fourth proportional to 57,222.60, 85,833.90 and 39,726.60 is: 59,589.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,222.60 : 85,833.90 = 39,726.60 : x
  2. Step 2: Convert to fraction form
    57,222.60/85,833.90 = 39,726.60/x
  3. Step 3: Cross multiply
    57,222.60x = 85,833.90 × 39,726.60
  4. Step 4: Simplify right side
    57,222.60x = 3,409,889,011.74
  5. Step 5: Solve for x
    x = 3,409,889,011.74/57,222.60
  6. Step 6: Final answer
    x = 59,589.90

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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.