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Finding the Fourth Proportional to 66,818.81, 92,210.43 and 36,604.29

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Solution

The fourth proportional to 66,818.81, 92,210.43 and 36,604.29 is: 50,514.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,818.81 : 92,210.43 = 36,604.29 : x
  2. Step 2: Convert to fraction form
    66,818.81/92,210.43 = 36,604.29/x
  3. Step 3: Cross multiply
    66,818.81x = 92,210.43 × 36,604.29
  4. Step 4: Simplify right side
    66,818.81x = 3,375,297,320.74
  5. Step 5: Solve for x
    x = 3,375,297,320.74/66,818.81
  6. Step 6: Final answer
    x = 50,514.18

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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.