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Finding the Fourth Proportional to 65,770.79, 90,763.58 and 35,556.14

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Solution

The fourth proportional to 65,770.79, 90,763.58 and 35,556.14 is: 49,067.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,770.79 : 90,763.58 = 35,556.14 : x
  2. Step 2: Convert to fraction form
    65,770.79/90,763.58 = 35,556.14/x
  3. Step 3: Cross multiply
    65,770.79x = 90,763.58 × 35,556.14
  4. Step 4: Simplify right side
    65,770.79x = 3,227,201,925.78
  5. Step 5: Solve for x
    x = 3,227,201,925.78/65,770.79
  6. Step 6: Final answer
    x = 49,067.41

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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.