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Finding the Fourth Proportional to 70,659.54, 106,025.63 and 39,063.74

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Solution

The fourth proportional to 70,659.54, 106,025.63 and 39,063.74 is: 58,615.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,659.54 : 106,025.63 = 39,063.74 : x
  2. Step 2: Convert to fraction form
    70,659.54/106,025.63 = 39,063.74/x
  3. Step 3: Cross multiply
    70,659.54x = 106,025.63 × 39,063.74
  4. Step 4: Simplify right side
    70,659.54x = 4,141,756,918.21
  5. Step 5: Solve for x
    x = 4,141,756,918.21/70,659.54
  6. Step 6: Final answer
    x = 58,615.68

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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.