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Finding the Fourth Proportional to 57,985.61, 86,999.13 and 35,773.16

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Solution

The fourth proportional to 57,985.61, 86,999.13 and 35,773.16 is: 53,672.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,985.61 : 86,999.13 = 35,773.16 : x
  2. Step 2: Convert to fraction form
    57,985.61/86,999.13 = 35,773.16/x
  3. Step 3: Cross multiply
    57,985.61x = 86,999.13 × 35,773.16
  4. Step 4: Simplify right side
    57,985.61x = 3,112,233,362.36
  5. Step 5: Solve for x
    x = 3,112,233,362.36/57,985.61
  6. Step 6: Final answer
    x = 53,672.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.