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Finding the Fourth Proportional to 66,774.80, 92,156.54 and 42,576.62

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Solution

The fourth proportional to 66,774.80, 92,156.54 and 42,576.62 is: 58,760.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,774.80 : 92,156.54 = 42,576.62 : x
  2. Step 2: Convert to fraction form
    66,774.80/92,156.54 = 42,576.62/x
  3. Step 3: Cross multiply
    66,774.80x = 92,156.54 × 42,576.62
  4. Step 4: Simplify right side
    66,774.80x = 3,923,713,860.14
  5. Step 5: Solve for x
    x = 3,923,713,860.14/66,774.80
  6. Step 6: Final answer
    x = 58,760.40

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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.