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Finding the Fourth Proportional to 65,351.58, 90,179.91 and 37,059.90

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Solution

The fourth proportional to 65,351.58, 90,179.91 and 37,059.90 is: 51,139.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,351.58 : 90,179.91 = 37,059.90 : x
  2. Step 2: Convert to fraction form
    65,351.58/90,179.91 = 37,059.90/x
  3. Step 3: Cross multiply
    65,351.58x = 90,179.91 × 37,059.90
  4. Step 4: Simplify right side
    65,351.58x = 3,342,058,446.61
  5. Step 5: Solve for x
    x = 3,342,058,446.61/65,351.58
  6. Step 6: Final answer
    x = 51,139.67

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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.