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Finding the Fourth Proportional to 52,807.80, 72,873.64 and 28,933.96

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Solution

The fourth proportional to 52,807.80, 72,873.64 and 28,933.96 is: 39,928.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,807.80 : 72,873.64 = 28,933.96 : x
  2. Step 2: Convert to fraction form
    52,807.80/72,873.64 = 28,933.96/x
  3. Step 3: Cross multiply
    52,807.80x = 72,873.64 × 28,933.96
  4. Step 4: Simplify right side
    52,807.80x = 2,108,522,984.81
  5. Step 5: Solve for x
    x = 2,108,522,984.81/52,807.80
  6. Step 6: Final answer
    x = 39,928.25

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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.