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Finding the Fourth Proportional to 52,785.40, 79,062.90 and 41,006.20

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Solution

The fourth proportional to 52,785.40, 79,062.90 and 41,006.20 is: 61,419.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,785.40 : 79,062.90 = 41,006.20 : x
  2. Step 2: Convert to fraction form
    52,785.40/79,062.90 = 41,006.20/x
  3. Step 3: Cross multiply
    52,785.40x = 79,062.90 × 41,006.20
  4. Step 4: Simplify right side
    52,785.40x = 3,242,069,089.98
  5. Step 5: Solve for x
    x = 3,242,069,089.98/52,785.40
  6. Step 6: Final answer
    x = 61,419.81

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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.