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Finding the Fourth Proportional to 35,405.96, 48,860.25 and 19,490.31

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Solution

The fourth proportional to 35,405.96, 48,860.25 and 19,490.31 is: 26,896.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,405.96 : 48,860.25 = 19,490.31 : x
  2. Step 2: Convert to fraction form
    35,405.96/48,860.25 = 19,490.31/x
  3. Step 3: Cross multiply
    35,405.96x = 48,860.25 × 19,490.31
  4. Step 4: Simplify right side
    35,405.96x = 952,301,419.18
  5. Step 5: Solve for x
    x = 952,301,419.18/35,405.96
  6. Step 6: Final answer
    x = 26,896.65

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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.