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Finding the Fourth Proportional to 66,258.54, 91,440.63 and 37,579.34

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Solution

The fourth proportional to 66,258.54, 91,440.63 and 37,579.34 is: 51,861.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,258.54 : 91,440.63 = 37,579.34 : x
  2. Step 2: Convert to fraction form
    66,258.54/91,440.63 = 37,579.34/x
  3. Step 3: Cross multiply
    66,258.54x = 91,440.63 × 37,579.34
  4. Step 4: Simplify right side
    66,258.54x = 3,436,278,753.19
  5. Step 5: Solve for x
    x = 3,436,278,753.19/66,258.54
  6. Step 6: Final answer
    x = 51,861.67

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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.