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Finding the Fourth Proportional to 55,362.88, 76,396.80 and 32,700.72

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Solution

The fourth proportional to 55,362.88, 76,396.80 and 32,700.72 is: 45,124.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,362.88 : 76,396.80 = 32,700.72 : x
  2. Step 2: Convert to fraction form
    55,362.88/76,396.80 = 32,700.72/x
  3. Step 3: Cross multiply
    55,362.88x = 76,396.80 × 32,700.72
  4. Step 4: Simplify right side
    55,362.88x = 2,498,230,365.70
  5. Step 5: Solve for x
    x = 2,498,230,365.70/55,362.88
  6. Step 6: Final answer
    x = 45,124.65

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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.