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Finding the Fourth Proportional to 62,575.36, 86,381.04 and 37,420

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Solution

The fourth proportional to 62,575.36, 86,381.04 and 37,420 is: 51,655.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,575.36 : 86,381.04 = 37,420 : x
  2. Step 2: Convert to fraction form
    62,575.36/86,381.04 = 37,420/x
  3. Step 3: Cross multiply
    62,575.36x = 86,381.04 × 37,420
  4. Step 4: Simplify right side
    62,575.36x = 3,232,378,516.80
  5. Step 5: Solve for x
    x = 3,232,378,516.80/62,575.36
  6. Step 6: Final answer
    x = 51,655.77

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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.