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Finding the Fourth Proportional to 41,579.78, 62,368.78 and 13,499.78

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Solution

The fourth proportional to 41,579.78, 62,368.78 and 13,499.78 is: 20,249.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,579.78 : 62,368.78 = 13,499.78 : x
  2. Step 2: Convert to fraction form
    41,579.78/62,368.78 = 13,499.78/x
  3. Step 3: Cross multiply
    41,579.78x = 62,368.78 × 13,499.78
  4. Step 4: Simplify right side
    41,579.78x = 841,964,808.87
  5. Step 5: Solve for x
    x = 841,964,808.87/41,579.78
  6. Step 6: Final answer
    x = 20,249.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.