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Finding the Fourth Proportional to 72,424.76, 99,949.08 and 40,593.44

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Solution

The fourth proportional to 72,424.76, 99,949.08 and 40,593.44 is: 56,020.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,424.76 : 99,949.08 = 40,593.44 : x
  2. Step 2: Convert to fraction form
    72,424.76/99,949.08 = 40,593.44/x
  3. Step 3: Cross multiply
    72,424.76x = 99,949.08 × 40,593.44
  4. Step 4: Simplify right side
    72,424.76x = 4,057,276,982.04
  5. Step 5: Solve for x
    x = 4,057,276,982.04/72,424.76
  6. Step 6: Final answer
    x = 56,020.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.