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Finding the Fourth Proportional to 62,673.94, 86,441.16 and 38,813.86

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Solution

The fourth proportional to 62,673.94, 86,441.16 and 38,813.86 is: 53,532.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,673.94 : 86,441.16 = 38,813.86 : x
  2. Step 2: Convert to fraction form
    62,673.94/86,441.16 = 38,813.86/x
  3. Step 3: Cross multiply
    62,673.94x = 86,441.16 × 38,813.86
  4. Step 4: Simplify right side
    62,673.94x = 3,355,115,082.48
  5. Step 5: Solve for x
    x = 3,355,115,082.48/62,673.94
  6. Step 6: Final answer
    x = 53,532.86

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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.