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Finding the Fourth Proportional to 35,342.78, 48,769.02 and 19,426.28

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Solution

The fourth proportional to 35,342.78, 48,769.02 and 19,426.28 is: 26,806.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,342.78 : 48,769.02 = 19,426.28 : x
  2. Step 2: Convert to fraction form
    35,342.78/48,769.02 = 19,426.28/x
  3. Step 3: Cross multiply
    35,342.78x = 48,769.02 × 19,426.28
  4. Step 4: Simplify right side
    35,342.78x = 947,400,394.00
  5. Step 5: Solve for x
    x = 947,400,394.00/35,342.78
  6. Step 6: Final answer
    x = 26,806.06

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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.