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Finding the Fourth Proportional to 72,856.95, 100,542.57 and 41,025.16

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Solution

The fourth proportional to 72,856.95, 100,542.57 and 41,025.16 is: 56,614.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,856.95 : 100,542.57 = 41,025.16 : x
  2. Step 2: Convert to fraction form
    72,856.95/100,542.57 = 41,025.16/x
  3. Step 3: Cross multiply
    72,856.95x = 100,542.57 × 41,025.16
  4. Step 4: Simplify right side
    72,856.95x = 4,124,775,021.06
  5. Step 5: Solve for x
    x = 4,124,775,021.06/72,856.95
  6. Step 6: Final answer
    x = 56,614.71

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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.