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Finding the Fourth Proportional to 82,515.64, 113,870.80 and 44,789.84

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Solution

The fourth proportional to 82,515.64, 113,870.80 and 44,789.84 is: 61,809.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,515.64 : 113,870.80 = 44,789.84 : x
  2. Step 2: Convert to fraction form
    82,515.64/113,870.80 = 44,789.84/x
  3. Step 3: Cross multiply
    82,515.64x = 113,870.80 × 44,789.84
  4. Step 4: Simplify right side
    82,515.64x = 5,100,254,912.67
  5. Step 5: Solve for x
    x = 5,100,254,912.67/82,515.64
  6. Step 6: Final answer
    x = 61,809.55

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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.