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Finding the Fourth Proportional to 62,671.58, 86,486.55 and 38,793.50

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Solution

The fourth proportional to 62,671.58, 86,486.55 and 38,793.50 is: 53,534.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,671.58 : 86,486.55 = 38,793.50 : x
  2. Step 2: Convert to fraction form
    62,671.58/86,486.55 = 38,793.50/x
  3. Step 3: Cross multiply
    62,671.58x = 86,486.55 × 38,793.50
  4. Step 4: Simplify right side
    62,671.58x = 3,355,115,977.43
  5. Step 5: Solve for x
    x = 3,355,115,977.43/62,671.58
  6. Step 6: Final answer
    x = 53,534.89

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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.