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Finding the Fourth Proportional to 62,979.67, 86,911.41 and 34,684.75

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Solution

The fourth proportional to 62,979.67, 86,911.41 and 34,684.75 is: 47,864.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,979.67 : 86,911.41 = 34,684.75 : x
  2. Step 2: Convert to fraction form
    62,979.67/86,911.41 = 34,684.75/x
  3. Step 3: Cross multiply
    62,979.67x = 86,911.41 × 34,684.75
  4. Step 4: Simplify right side
    62,979.67x = 3,014,500,528.00
  5. Step 5: Solve for x
    x = 3,014,500,528.00/62,979.67
  6. Step 6: Final answer
    x = 47,864.66

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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.