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Finding the Fourth Proportional to 61,751.80, 85,217.57 and 33,457.47

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Solution

The fourth proportional to 61,751.80, 85,217.57 and 33,457.47 is: 46,171.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,751.80 : 85,217.57 = 33,457.47 : x
  2. Step 2: Convert to fraction form
    61,751.80/85,217.57 = 33,457.47/x
  3. Step 3: Cross multiply
    61,751.80x = 85,217.57 × 33,457.47
  4. Step 4: Simplify right side
    61,751.80x = 2,851,163,698.37
  5. Step 5: Solve for x
    x = 2,851,163,698.37/61,751.80
  6. Step 6: Final answer
    x = 46,171.35

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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.