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Finding the Fourth Proportional to 52,698.99, 72,723.06 and 28,825.15

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Solution

The fourth proportional to 52,698.99, 72,723.06 and 28,825.15 is: 39,777.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,698.99 : 72,723.06 = 28,825.15 : x
  2. Step 2: Convert to fraction form
    52,698.99/72,723.06 = 28,825.15/x
  3. Step 3: Cross multiply
    52,698.99x = 72,723.06 × 28,825.15
  4. Step 4: Simplify right side
    52,698.99x = 2,096,252,931.15
  5. Step 5: Solve for x
    x = 2,096,252,931.15/52,698.99
  6. Step 6: Final answer
    x = 39,777.86

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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.