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Finding the Fourth Proportional to 61,802.60, 85,287.13 and 33,508.08

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Solution

The fourth proportional to 61,802.60, 85,287.13 and 33,508.08 is: 46,240.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,802.60 : 85,287.13 = 33,508.08 : x
  2. Step 2: Convert to fraction form
    61,802.60/85,287.13 = 33,508.08/x
  3. Step 3: Cross multiply
    61,802.60x = 85,287.13 × 33,508.08
  4. Step 4: Simplify right side
    61,802.60x = 2,857,807,891.24
  5. Step 5: Solve for x
    x = 2,857,807,891.24/61,802.60
  6. Step 6: Final answer
    x = 46,240.90

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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.