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Finding the Fourth Proportional to 62,701.76, 86,530.22 and 34,409.32

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Solution

The fourth proportional to 62,701.76, 86,530.22 and 34,409.32 is: 47,485.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,701.76 : 86,530.22 = 34,409.32 : x
  2. Step 2: Convert to fraction form
    62,701.76/86,530.22 = 34,409.32/x
  3. Step 3: Cross multiply
    62,701.76x = 86,530.22 × 34,409.32
  4. Step 4: Simplify right side
    62,701.76x = 2,977,446,029.65
  5. Step 5: Solve for x
    x = 2,977,446,029.65/62,701.76
  6. Step 6: Final answer
    x = 47,485.84

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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.