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Finding the Fourth Proportional to 35,407.68, 48,864.36 and 19,491.96

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Solution

The fourth proportional to 35,407.68, 48,864.36 and 19,491.96 is: 26,899.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,407.68 : 48,864.36 = 19,491.96 : x
  2. Step 2: Convert to fraction form
    35,407.68/48,864.36 = 19,491.96/x
  3. Step 3: Cross multiply
    35,407.68x = 48,864.36 × 19,491.96
  4. Step 4: Simplify right side
    35,407.68x = 952,462,150.55
  5. Step 5: Solve for x
    x = 952,462,150.55/35,407.68
  6. Step 6: Final answer
    x = 26,899.87

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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.