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Finding the Fourth Proportional to 76,598.38, 105,662.62 and 45,963.55

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Solution

The fourth proportional to 76,598.38, 105,662.62 and 45,963.55 is: 63,403.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,598.38 : 105,662.62 = 45,963.55 : x
  2. Step 2: Convert to fraction form
    76,598.38/105,662.62 = 45,963.55/x
  3. Step 3: Cross multiply
    76,598.38x = 105,662.62 × 45,963.55
  4. Step 4: Simplify right side
    76,598.38x = 4,856,628,589.19
  5. Step 5: Solve for x
    x = 4,856,628,589.19/76,598.38
  6. Step 6: Final answer
    x = 63,403.81

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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.