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Finding the Fourth Proportional to 76,797.05, 105,984.78 and 46,585.22

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Solution

The fourth proportional to 76,797.05, 105,984.78 and 46,585.22 is: 64,290.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,797.05 : 105,984.78 = 46,585.22 : x
  2. Step 2: Convert to fraction form
    76,797.05/105,984.78 = 46,585.22/x
  3. Step 3: Cross multiply
    76,797.05x = 105,984.78 × 46,585.22
  4. Step 4: Simplify right side
    76,797.05x = 4,937,324,292.95
  5. Step 5: Solve for x
    x = 4,937,324,292.95/76,797.05
  6. Step 6: Final answer
    x = 64,290.55

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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.