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Finding the Fourth Proportional to 66,805.56, 92,106.72 and 47,708.19

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Solution

The fourth proportional to 66,805.56, 92,106.72 and 47,708.19 is: 65,776.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,805.56 : 92,106.72 = 47,708.19 : x
  2. Step 2: Convert to fraction form
    66,805.56/92,106.72 = 47,708.19/x
  3. Step 3: Cross multiply
    66,805.56x = 92,106.72 × 47,708.19
  4. Step 4: Simplify right side
    66,805.56x = 4,394,244,898.04
  5. Step 5: Solve for x
    x = 4,394,244,898.04/66,805.56
  6. Step 6: Final answer
    x = 65,776.63

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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.