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Finding the Fourth Proportional to 35,136.90, 48,489.27 and 19,221

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Solution

The fourth proportional to 35,136.90, 48,489.27 and 19,221 is: 26,525.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,136.90 : 48,489.27 = 19,221 : x
  2. Step 2: Convert to fraction form
    35,136.90/48,489.27 = 19,221/x
  3. Step 3: Cross multiply
    35,136.90x = 48,489.27 × 19,221
  4. Step 4: Simplify right side
    35,136.90x = 932,012,258.67
  5. Step 5: Solve for x
    x = 932,012,258.67/35,136.90
  6. Step 6: Final answer
    x = 26,525.17

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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.