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Finding the Fourth Proportional to 65,381.14, 90,227.58 and 35,573.14

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Solution

The fourth proportional to 65,381.14, 90,227.58 and 35,573.14 is: 49,091.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,381.14 : 90,227.58 = 35,573.14 : x
  2. Step 2: Convert to fraction form
    65,381.14/90,227.58 = 35,573.14/x
  3. Step 3: Cross multiply
    65,381.14x = 90,227.58 × 35,573.14
  4. Step 4: Simplify right side
    65,381.14x = 3,209,678,335.20
  5. Step 5: Solve for x
    x = 3,209,678,335.20/65,381.14
  6. Step 6: Final answer
    x = 49,091.81

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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.