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Finding the Fourth Proportional to 66,486.80, 92,226.14 and 64,249.04

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Solution

The fourth proportional to 66,486.80, 92,226.14 and 64,249.04 is: 89,122.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,486.80 : 92,226.14 = 64,249.04 : x
  2. Step 2: Convert to fraction form
    66,486.80/92,226.14 = 64,249.04/x
  3. Step 3: Cross multiply
    66,486.80x = 92,226.14 × 64,249.04
  4. Step 4: Simplify right side
    66,486.80x = 5,925,440,957.91
  5. Step 5: Solve for x
    x = 5,925,440,957.91/66,486.80
  6. Step 6: Final answer
    x = 89,122.07

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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.