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Finding the Fourth Proportional to 72,954.48, 109,431.72 and 17,550.48

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Solution

The fourth proportional to 72,954.48, 109,431.72 and 17,550.48 is: 26,325.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,954.48 : 109,431.72 = 17,550.48 : x
  2. Step 2: Convert to fraction form
    72,954.48/109,431.72 = 17,550.48/x
  3. Step 3: Cross multiply
    72,954.48x = 109,431.72 × 17,550.48
  4. Step 4: Simplify right side
    72,954.48x = 1,920,579,213.23
  5. Step 5: Solve for x
    x = 1,920,579,213.23/72,954.48
  6. Step 6: Final answer
    x = 26,325.72

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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.