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Finding the Fourth Proportional to 61,802.28, 85,328.10 and 36,659.88

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Solution

The fourth proportional to 61,802.28, 85,328.10 and 36,659.88 is: 50,614.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,802.28 : 85,328.10 = 36,659.88 : x
  2. Step 2: Convert to fraction form
    61,802.28/85,328.10 = 36,659.88/x
  3. Step 3: Cross multiply
    61,802.28x = 85,328.10 × 36,659.88
  4. Step 4: Simplify right side
    61,802.28x = 3,128,117,906.63
  5. Step 5: Solve for x
    x = 3,128,117,906.63/61,802.28
  6. Step 6: Final answer
    x = 50,614.93

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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.