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Finding the Fourth Proportional to 61,752.90, 85,218.80 and 33,458.52

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Solution

The fourth proportional to 61,752.90, 85,218.80 and 33,458.52 is: 46,172.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,752.90 : 85,218.80 = 33,458.52 : x
  2. Step 2: Convert to fraction form
    61,752.90/85,218.80 = 33,458.52/x
  3. Step 3: Cross multiply
    61,752.90x = 85,218.80 × 33,458.52
  4. Step 4: Simplify right side
    61,752.90x = 2,851,294,924.18
  5. Step 5: Solve for x
    x = 2,851,294,924.18/61,752.90
  6. Step 6: Final answer
    x = 46,172.65

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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.