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Finding the Fourth Proportional to 51,642.78, 71,191.62 and 36,508.74

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Solution

The fourth proportional to 51,642.78, 71,191.62 and 36,508.74 is: 50,328.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,642.78 : 71,191.62 = 36,508.74 : x
  2. Step 2: Convert to fraction form
    51,642.78/71,191.62 = 36,508.74/x
  3. Step 3: Cross multiply
    51,642.78x = 71,191.62 × 36,508.74
  4. Step 4: Simplify right side
    51,642.78x = 2,599,116,344.76
  5. Step 5: Solve for x
    x = 2,599,116,344.76/51,642.78
  6. Step 6: Final answer
    x = 50,328.75

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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.