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Finding the Fourth Proportional to 66,767.90, 92,141.15 and 36,554.49

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Solution

The fourth proportional to 66,767.90, 92,141.15 and 36,554.49 is: 50,445.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,767.90 : 92,141.15 = 36,554.49 : x
  2. Step 2: Convert to fraction form
    66,767.90/92,141.15 = 36,554.49/x
  3. Step 3: Cross multiply
    66,767.90x = 92,141.15 × 36,554.49
  4. Step 4: Simplify right side
    66,767.90x = 3,368,172,563.49
  5. Step 5: Solve for x
    x = 3,368,172,563.49/66,767.90
  6. Step 6: Final answer
    x = 50,445.99

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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.