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Finding the Fourth Proportional to 35,322.64, 48,742.44 and 20,211.84

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Solution

The fourth proportional to 35,322.64, 48,742.44 and 20,211.84 is: 27,890.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,322.64 : 48,742.44 = 20,211.84 : x
  2. Step 2: Convert to fraction form
    35,322.64/48,742.44 = 20,211.84/x
  3. Step 3: Cross multiply
    35,322.64x = 48,742.44 × 20,211.84
  4. Step 4: Simplify right side
    35,322.64x = 985,174,398.49
  5. Step 5: Solve for x
    x = 985,174,398.49/35,322.64
  6. Step 6: Final answer
    x = 27,890.74

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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.