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Finding the Fourth Proportional to 72,679.68, 100,337.76 and 44,004.48

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Solution

The fourth proportional to 72,679.68, 100,337.76 and 44,004.48 is: 60,750.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,679.68 : 100,337.76 = 44,004.48 : x
  2. Step 2: Convert to fraction form
    72,679.68/100,337.76 = 44,004.48/x
  3. Step 3: Cross multiply
    72,679.68x = 100,337.76 × 44,004.48
  4. Step 4: Simplify right side
    72,679.68x = 4,415,310,953.16
  5. Step 5: Solve for x
    x = 4,415,310,953.16/72,679.68
  6. Step 6: Final answer
    x = 60,750.28

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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.