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Finding the Fourth Proportional to 65,902.29, 90,941.56 and 39,047.27

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Solution

The fourth proportional to 65,902.29, 90,941.56 and 39,047.27 is: 53,883.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,902.29 : 90,941.56 = 39,047.27 : x
  2. Step 2: Convert to fraction form
    65,902.29/90,941.56 = 39,047.27/x
  3. Step 3: Cross multiply
    65,902.29x = 90,941.56 × 39,047.27
  4. Step 4: Simplify right side
    65,902.29x = 3,551,019,452.30
  5. Step 5: Solve for x
    x = 3,551,019,452.30/65,902.29
  6. Step 6: Final answer
    x = 53,883.10

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1.5x scale

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.