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Finding the Fourth Proportional to 65,354.58, 90,189.36 and 37,060.38

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Solution

The fourth proportional to 65,354.58, 90,189.36 and 37,060.38 is: 51,143.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,354.58 : 90,189.36 = 37,060.38 : x
  2. Step 2: Convert to fraction form
    65,354.58/90,189.36 = 37,060.38/x
  3. Step 3: Cross multiply
    65,354.58x = 90,189.36 × 37,060.38
  4. Step 4: Simplify right side
    65,354.58x = 3,342,451,953.56
  5. Step 5: Solve for x
    x = 3,342,451,953.56/65,354.58
  6. Step 6: Final answer
    x = 51,143.35

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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.