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Finding the Fourth Proportional to 62,649.28, 86,455.92 and 34,354.96

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Solution

The fourth proportional to 62,649.28, 86,455.92 and 34,354.96 is: 47,409.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,649.28 : 86,455.92 = 34,354.96 : x
  2. Step 2: Convert to fraction form
    62,649.28/86,455.92 = 34,354.96/x
  3. Step 3: Cross multiply
    62,649.28x = 86,455.92 × 34,354.96
  4. Step 4: Simplify right side
    62,649.28x = 2,970,189,673.36
  5. Step 5: Solve for x
    x = 2,970,189,673.36/62,649.28
  6. Step 6: Final answer
    x = 47,409.80

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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.