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Finding the Fourth Proportional to 52,662.05, 72,674.92 and 28,790.49

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Solution

The fourth proportional to 52,662.05, 72,674.92 and 28,790.49 is: 39,731.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,662.05 : 72,674.92 = 28,790.49 : x
  2. Step 2: Convert to fraction form
    52,662.05/72,674.92 = 28,790.49/x
  3. Step 3: Cross multiply
    52,662.05x = 72,674.92 × 28,790.49
  4. Step 4: Simplify right side
    52,662.05x = 2,092,346,457.23
  5. Step 5: Solve for x
    x = 2,092,346,457.23/52,662.05
  6. Step 6: Final answer
    x = 39,731.58

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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.