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Finding the Fourth Proportional to 72,936.95, 109,405.41 and 23,688.95

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Solution

The fourth proportional to 72,936.95, 109,405.41 and 23,688.95 is: 35,533.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,936.95 : 109,405.41 = 23,688.95 : x
  2. Step 2: Convert to fraction form
    72,936.95/109,405.41 = 23,688.95/x
  3. Step 3: Cross multiply
    72,936.95x = 109,405.41 × 23,688.95
  4. Step 4: Simplify right side
    72,936.95x = 2,591,698,740.19
  5. Step 5: Solve for x
    x = 2,591,698,740.19/72,936.95
  6. Step 6: Final answer
    x = 35,533.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.