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Finding the Fourth Proportional to 62,709.81, 86,541 and 35,854.83

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Solution

The fourth proportional to 62,709.81, 86,541 and 35,854.83 is: 49,480.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,709.81 : 86,541 = 35,854.83 : x
  2. Step 2: Convert to fraction form
    62,709.81/86,541 = 35,854.83/x
  3. Step 3: Cross multiply
    62,709.81x = 86,541 × 35,854.83
  4. Step 4: Simplify right side
    62,709.81x = 3,102,912,843.03
  5. Step 5: Solve for x
    x = 3,102,912,843.03/62,709.81
  6. Step 6: Final answer
    x = 49,480.50

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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.