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Finding the Fourth Proportional to 66,450.84, 92,098.05 and 65,206.68

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Solution

The fourth proportional to 66,450.84, 92,098.05 and 65,206.68 is: 90,373.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,450.84 : 92,098.05 = 65,206.68 : x
  2. Step 2: Convert to fraction form
    66,450.84/92,098.05 = 65,206.68/x
  3. Step 3: Cross multiply
    66,450.84x = 92,098.05 × 65,206.68
  4. Step 4: Simplify right side
    66,450.84x = 6,005,408,074.97
  5. Step 5: Solve for x
    x = 6,005,408,074.97/66,450.84
  6. Step 6: Final answer
    x = 90,373.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.