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Finding the Fourth Proportional to 66,952.09, 100,445.01 and 47,269.09

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Solution

The fourth proportional to 66,952.09, 100,445.01 and 47,269.09 is: 70,915.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,952.09 : 100,445.01 = 47,269.09 : x
  2. Step 2: Convert to fraction form
    66,952.09/100,445.01 = 47,269.09/x
  3. Step 3: Cross multiply
    66,952.09x = 100,445.01 × 47,269.09
  4. Step 4: Simplify right side
    66,952.09x = 4,747,944,217.74
  5. Step 5: Solve for x
    x = 4,747,944,217.74/66,952.09
  6. Step 6: Final answer
    x = 70,915.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.