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Finding the Fourth Proportional to 51,655.32, 77,472.77 and 14,205.73

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Solution

The fourth proportional to 51,655.32, 77,472.77 and 14,205.73 is: 21,305.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,655.32 : 77,472.77 = 14,205.73 : x
  2. Step 2: Convert to fraction form
    51,655.32/77,472.77 = 14,205.73/x
  3. Step 3: Cross multiply
    51,655.32x = 77,472.77 × 14,205.73
  4. Step 4: Simplify right side
    51,655.32x = 1,100,556,865.61
  5. Step 5: Solve for x
    x = 1,100,556,865.61/51,655.32
  6. Step 6: Final answer
    x = 21,305.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.