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Finding the Fourth Proportional to 52,777.49, 72,833.04 and 28,578.71

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Solution

The fourth proportional to 52,777.49, 72,833.04 and 28,578.71 is: 39,438.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,777.49 : 72,833.04 = 28,578.71 : x
  2. Step 2: Convert to fraction form
    52,777.49/72,833.04 = 28,578.71/x
  3. Step 3: Cross multiply
    52,777.49x = 72,833.04 × 28,578.71
  4. Step 4: Simplify right side
    52,777.49x = 2,081,474,510.66
  5. Step 5: Solve for x
    x = 2,081,474,510.66/52,777.49
  6. Step 6: Final answer
    x = 39,438.68

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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.