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Finding the Fourth Proportional to 35,489.21, 48,978.54 and 26,521.16

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Solution

The fourth proportional to 35,489.21, 48,978.54 and 26,521.16 is: 36,601.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,489.21 : 48,978.54 = 26,521.16 : x
  2. Step 2: Convert to fraction form
    35,489.21/48,978.54 = 26,521.16/x
  3. Step 3: Cross multiply
    35,489.21x = 48,978.54 × 26,521.16
  4. Step 4: Simplify right side
    35,489.21x = 1,298,967,451.01
  5. Step 5: Solve for x
    x = 1,298,967,451.01/35,489.21
  6. Step 6: Final answer
    x = 36,601.76

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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.