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Finding the Fourth Proportional to 73,728.15, 110,592.30 and 18,324.15

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Solution

The fourth proportional to 73,728.15, 110,592.30 and 18,324.15 is: 27,486.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,728.15 : 110,592.30 = 18,324.15 : x
  2. Step 2: Convert to fraction form
    73,728.15/110,592.30 = 18,324.15/x
  3. Step 3: Cross multiply
    73,728.15x = 110,592.30 × 18,324.15
  4. Step 4: Simplify right side
    73,728.15x = 2,026,509,894.05
  5. Step 5: Solve for x
    x = 2,026,509,894.05/73,728.15
  6. Step 6: Final answer
    x = 27,486.24

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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.