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Finding the Fourth Proportional to 76,633.58, 105,802.92 and 52,474.97

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Solution

The fourth proportional to 76,633.58, 105,802.92 and 52,474.97 is: 72,448.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,633.58 : 105,802.92 = 52,474.97 : x
  2. Step 2: Convert to fraction form
    76,633.58/105,802.92 = 52,474.97/x
  3. Step 3: Cross multiply
    76,633.58x = 105,802.92 × 52,474.97
  4. Step 4: Simplify right side
    76,633.58x = 5,552,004,523.90
  5. Step 5: Solve for x
    x = 5,552,004,523.90/76,633.58
  6. Step 6: Final answer
    x = 72,448.72

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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.