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Finding the Fourth Proportional to 71,440.76, 98,665.26 and 55,713.08

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Solution

The fourth proportional to 71,440.76, 98,665.26 and 55,713.08 is: 76,944.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,440.76 : 98,665.26 = 55,713.08 : x
  2. Step 2: Convert to fraction form
    71,440.76/98,665.26 = 55,713.08/x
  3. Step 3: Cross multiply
    71,440.76x = 98,665.26 × 55,713.08
  4. Step 4: Simplify right side
    71,440.76x = 5,496,945,523.60
  5. Step 5: Solve for x
    x = 5,496,945,523.60/71,440.76
  6. Step 6: Final answer
    x = 76,944.11

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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.