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Finding the Fourth Proportional to 55,453.79, 76,531.86 and 32,800.11

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Solution

The fourth proportional to 55,453.79, 76,531.86 and 32,800.11 is: 45,267.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,453.79 : 76,531.86 = 32,800.11 : x
  2. Step 2: Convert to fraction form
    55,453.79/76,531.86 = 32,800.11/x
  3. Step 3: Cross multiply
    55,453.79x = 76,531.86 × 32,800.11
  4. Step 4: Simplify right side
    55,453.79x = 2,510,253,426.50
  5. Step 5: Solve for x
    x = 2,510,253,426.50/55,453.79
  6. Step 6: Final answer
    x = 45,267.49

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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.