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Finding the Fourth Proportional to 65,254.78, 90,049.19 and 35,446.14

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Solution

The fourth proportional to 65,254.78, 90,049.19 and 35,446.14 is: 48,914.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,254.78 : 90,049.19 = 35,446.14 : x
  2. Step 2: Convert to fraction form
    65,254.78/90,049.19 = 35,446.14/x
  3. Step 3: Cross multiply
    65,254.78x = 90,049.19 × 35,446.14
  4. Step 4: Simplify right side
    65,254.78x = 3,191,896,195.63
  5. Step 5: Solve for x
    x = 3,191,896,195.63/65,254.78
  6. Step 6: Final answer
    x = 48,914.37

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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.