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Finding the Fourth Proportional to 65,339.42, 90,137.49 and 44,126.06

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Solution

The fourth proportional to 65,339.42, 90,137.49 and 44,126.06 is: 60,873.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,339.42 : 90,137.49 = 44,126.06 : x
  2. Step 2: Convert to fraction form
    65,339.42/90,137.49 = 44,126.06/x
  3. Step 3: Cross multiply
    65,339.42x = 90,137.49 × 44,126.06
  4. Step 4: Simplify right side
    65,339.42x = 3,977,412,291.99
  5. Step 5: Solve for x
    x = 3,977,412,291.99/65,339.42
  6. Step 6: Final answer
    x = 60,873.09

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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.