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Finding the Fourth Proportional to 66,748.96, 91,622.81 and 59,026.06

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Solution

The fourth proportional to 66,748.96, 91,622.81 and 59,026.06 is: 81,021.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,748.96 : 91,622.81 = 59,026.06 : x
  2. Step 2: Convert to fraction form
    66,748.96/91,622.81 = 59,026.06/x
  3. Step 3: Cross multiply
    66,748.96x = 91,622.81 × 59,026.06
  4. Step 4: Simplify right side
    66,748.96x = 5,408,133,480.43
  5. Step 5: Solve for x
    x = 5,408,133,480.43/66,748.96
  6. Step 6: Final answer
    x = 81,021.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.