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Finding the Fourth Proportional to 72,680.68, 100,339.14 and 44,005.48

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Solution

The fourth proportional to 72,680.68, 100,339.14 and 44,005.48 is: 60,751.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,680.68 : 100,339.14 = 44,005.48 : x
  2. Step 2: Convert to fraction form
    72,680.68/100,339.14 = 44,005.48/x
  3. Step 3: Cross multiply
    72,680.68x = 100,339.14 × 44,005.48
  4. Step 4: Simplify right side
    72,680.68x = 4,415,472,018.49
  5. Step 5: Solve for x
    x = 4,415,472,018.49/72,680.68
  6. Step 6: Final answer
    x = 60,751.66

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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.