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Finding the Fourth Proportional to 57,300.72, 85,955.22 and 23,987.28

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Solution

The fourth proportional to 57,300.72, 85,955.22 and 23,987.28 is: 35,982.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,300.72 : 85,955.22 = 23,987.28 : x
  2. Step 2: Convert to fraction form
    57,300.72/85,955.22 = 23,987.28/x
  3. Step 3: Cross multiply
    57,300.72x = 85,955.22 × 23,987.28
  4. Step 4: Simplify right side
    57,300.72x = 2,061,831,929.60
  5. Step 5: Solve for x
    x = 2,061,831,929.60/57,300.72
  6. Step 6: Final answer
    x = 35,982.65

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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.