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Finding the Fourth Proportional to 71,009.64, 106,425.36 and 37,647.36

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Solution

The fourth proportional to 71,009.64, 106,425.36 and 37,647.36 is: 56,423.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,009.64 : 106,425.36 = 37,647.36 : x
  2. Step 2: Convert to fraction form
    71,009.64/106,425.36 = 37,647.36/x
  3. Step 3: Cross multiply
    71,009.64x = 106,425.36 × 37,647.36
  4. Step 4: Simplify right side
    71,009.64x = 4,006,633,841.05
  5. Step 5: Solve for x
    x = 4,006,633,841.05/71,009.64
  6. Step 6: Final answer
    x = 56,423.80

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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.