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Finding the Fourth Proportional to 72,936.32, 109,406.80 and 23,016.88

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Solution

The fourth proportional to 72,936.32, 109,406.80 and 23,016.88 is: 34,526.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,936.32 : 109,406.80 = 23,016.88 : x
  2. Step 2: Convert to fraction form
    72,936.32/109,406.80 = 23,016.88/x
  3. Step 3: Cross multiply
    72,936.32x = 109,406.80 × 23,016.88
  4. Step 4: Simplify right side
    72,936.32x = 2,518,203,186.78
  5. Step 5: Solve for x
    x = 2,518,203,186.78/72,936.32
  6. Step 6: Final answer
    x = 34,526.05

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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.