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Finding the Fourth Proportional to 62,776.88, 86,644.45 and 35,557.84

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Solution

The fourth proportional to 62,776.88, 86,644.45 and 35,557.84 is: 49,076.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,776.88 : 86,644.45 = 35,557.84 : x
  2. Step 2: Convert to fraction form
    62,776.88/86,644.45 = 35,557.84/x
  3. Step 3: Cross multiply
    62,776.88x = 86,644.45 × 35,557.84
  4. Step 4: Simplify right side
    62,776.88x = 3,080,889,489.99
  5. Step 5: Solve for x
    x = 3,080,889,489.99/62,776.88
  6. Step 6: Final answer
    x = 49,076.82

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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.