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Finding the Fourth Proportional to 79,524.81, 109,628.42 and 55,577.07

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Solution

The fourth proportional to 79,524.81, 109,628.42 and 55,577.07 is: 76,615.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,524.81 : 109,628.42 = 55,577.07 : x
  2. Step 2: Convert to fraction form
    79,524.81/109,628.42 = 55,577.07/x
  3. Step 3: Cross multiply
    79,524.81x = 109,628.42 × 55,577.07
  4. Step 4: Simplify right side
    79,524.81x = 6,092,826,094.44
  5. Step 5: Solve for x
    x = 6,092,826,094.44/79,524.81
  6. Step 6: Final answer
    x = 76,615.41

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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.