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Finding the Fourth Proportional to 61,684.47, 85,124.48 and 33,390.27

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Solution

The fourth proportional to 61,684.47, 85,124.48 and 33,390.27 is: 46,078.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,684.47 : 85,124.48 = 33,390.27 : x
  2. Step 2: Convert to fraction form
    61,684.47/85,124.48 = 33,390.27/x
  3. Step 3: Cross multiply
    61,684.47x = 85,124.48 × 33,390.27
  4. Step 4: Simplify right side
    61,684.47x = 2,842,329,203.86
  5. Step 5: Solve for x
    x = 2,842,329,203.86/61,684.47
  6. Step 6: Final answer
    x = 46,078.52

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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.