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Finding the Fourth Proportional to 52,658.40, 72,658.52 and 29,996.90

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Solution

The fourth proportional to 52,658.40, 72,658.52 and 29,996.90 is: 41,389.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,658.40 : 72,658.52 = 29,996.90 : x
  2. Step 2: Convert to fraction form
    52,658.40/72,658.52 = 29,996.90/x
  3. Step 3: Cross multiply
    52,658.40x = 72,658.52 × 29,996.90
  4. Step 4: Simplify right side
    52,658.40x = 2,179,529,845.31
  5. Step 5: Solve for x
    x = 2,179,529,845.31/52,658.40
  6. Step 6: Final answer
    x = 41,389.97

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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.