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Finding the Fourth Proportional to 35,405.64, 48,859.77 and 19,490.01

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Solution

The fourth proportional to 35,405.64, 48,859.77 and 19,490.01 is: 26,896.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,405.64 : 48,859.77 = 19,490.01 : x
  2. Step 2: Convert to fraction form
    35,405.64/48,859.77 = 19,490.01/x
  3. Step 3: Cross multiply
    35,405.64x = 48,859.77 × 19,490.01
  4. Step 4: Simplify right side
    35,405.64x = 952,277,405.90
  5. Step 5: Solve for x
    x = 952,277,405.90/35,405.64
  6. Step 6: Final answer
    x = 26,896.21

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.