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Finding the Fourth Proportional to 66,576.84, 91,872.31 and 37,903.48

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Solution

The fourth proportional to 66,576.84, 91,872.31 and 37,903.48 is: 52,304.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,576.84 : 91,872.31 = 37,903.48 : x
  2. Step 2: Convert to fraction form
    66,576.84/91,872.31 = 37,903.48/x
  3. Step 3: Cross multiply
    66,576.84x = 91,872.31 × 37,903.48
  4. Step 4: Simplify right side
    66,576.84x = 3,482,280,264.64
  5. Step 5: Solve for x
    x = 3,482,280,264.64/66,576.84
  6. Step 6: Final answer
    x = 52,304.68

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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.