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Finding the Fourth Proportional to 80,808.65, 111,515.93 and 46,836.85

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Solution

The fourth proportional to 80,808.65, 111,515.93 and 46,836.85 is: 64,634.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,808.65 : 111,515.93 = 46,836.85 : x
  2. Step 2: Convert to fraction form
    80,808.65/111,515.93 = 46,836.85/x
  3. Step 3: Cross multiply
    80,808.65x = 111,515.93 × 46,836.85
  4. Step 4: Simplify right side
    80,808.65x = 5,223,054,607.23
  5. Step 5: Solve for x
    x = 5,223,054,607.23/80,808.65
  6. Step 6: Final answer
    x = 64,634.84

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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.