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Finding the Fourth Proportional to 35,169.76, 48,530.64 and 20,061.28

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Solution

The fourth proportional to 35,169.76, 48,530.64 and 20,061.28 is: 27,682.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,169.76 : 48,530.64 = 20,061.28 : x
  2. Step 2: Convert to fraction form
    35,169.76/48,530.64 = 20,061.28/x
  3. Step 3: Cross multiply
    35,169.76x = 48,530.64 × 20,061.28
  4. Step 4: Simplify right side
    35,169.76x = 973,586,757.62
  5. Step 5: Solve for x
    x = 973,586,757.62/35,169.76
  6. Step 6: Final answer
    x = 27,682.50

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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.