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Finding the Fourth Proportional to 65,897.05, 90,938.10 and 35,682.73

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Solution

The fourth proportional to 65,897.05, 90,938.10 and 35,682.73 is: 49,242.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,897.05 : 90,938.10 = 35,682.73 : x
  2. Step 2: Convert to fraction form
    65,897.05/90,938.10 = 35,682.73/x
  3. Step 3: Cross multiply
    65,897.05x = 90,938.10 × 35,682.73
  4. Step 4: Simplify right side
    65,897.05x = 3,244,919,669.01
  5. Step 5: Solve for x
    x = 3,244,919,669.01/65,897.05
  6. Step 6: Final answer
    x = 49,242.26

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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.