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Finding the Fourth Proportional to 72,923.80, 109,401.18 and 23,018.32

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Solution

The fourth proportional to 72,923.80, 109,401.18 and 23,018.32 is: 34,532.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,923.80 : 109,401.18 = 23,018.32 : x
  2. Step 2: Convert to fraction form
    72,923.80/109,401.18 = 23,018.32/x
  3. Step 3: Cross multiply
    72,923.80x = 109,401.18 × 23,018.32
  4. Step 4: Simplify right side
    72,923.80x = 2,518,231,369.62
  5. Step 5: Solve for x
    x = 2,518,231,369.62/72,923.80
  6. Step 6: Final answer
    x = 34,532.37

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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.