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Finding the Fourth Proportional to 76,794.36, 105,888.41 and 62,414.84

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Solution

The fourth proportional to 76,794.36, 105,888.41 and 62,414.84 is: 86,061.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,794.36 : 105,888.41 = 62,414.84 : x
  2. Step 2: Convert to fraction form
    76,794.36/105,888.41 = 62,414.84/x
  3. Step 3: Cross multiply
    76,794.36x = 105,888.41 × 62,414.84
  4. Step 4: Simplify right side
    76,794.36x = 6,609,007,326.49
  5. Step 5: Solve for x
    x = 6,609,007,326.49/76,794.36
  6. Step 6: Final answer
    x = 86,061.10

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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.