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Finding the Fourth Proportional to 35,808.21, 49,411.17 and 19,890.09

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Solution

The fourth proportional to 35,808.21, 49,411.17 and 19,890.09 is: 27,446.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,808.21 : 49,411.17 = 19,890.09 : x
  2. Step 2: Convert to fraction form
    35,808.21/49,411.17 = 19,890.09/x
  3. Step 3: Cross multiply
    35,808.21x = 49,411.17 × 19,890.09
  4. Step 4: Simplify right side
    35,808.21x = 982,792,618.31
  5. Step 5: Solve for x
    x = 982,792,618.31/35,808.21
  6. Step 6: Final answer
    x = 27,446.01

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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.