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Finding the Fourth Proportional to 35,405.97, 48,859.38 and 19,490.28

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Solution

The fourth proportional to 35,405.97, 48,859.38 and 19,490.28 is: 26,896.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,405.97 : 48,859.38 = 19,490.28 : x
  2. Step 2: Convert to fraction form
    35,405.97/48,859.38 = 19,490.28/x
  3. Step 3: Cross multiply
    35,405.97x = 48,859.38 × 19,490.28
  4. Step 4: Simplify right side
    35,405.97x = 952,282,996.83
  5. Step 5: Solve for x
    x = 952,282,996.83/35,405.97
  6. Step 6: Final answer
    x = 26,896.11

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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.