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Finding the Fourth Proportional to 39,658.60, 52,780.93 and 39,658.60

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Solution

The fourth proportional to 39,658.60, 52,780.93 and 39,658.60 is: 52,780.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,658.60 : 52,780.93 = 39,658.60 : x
  2. Step 2: Convert to fraction form
    39,658.60/52,780.93 = 39,658.60/x
  3. Step 3: Cross multiply
    39,658.60x = 52,780.93 × 39,658.60
  4. Step 4: Simplify right side
    39,658.60x = 2,093,217,790.50
  5. Step 5: Solve for x
    x = 2,093,217,790.50/39,658.60
  6. Step 6: Final answer
    x = 52,780.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.