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Finding the Fourth Proportional to 52,864.80, 79,276.80 and 15,412.32

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Solution

The fourth proportional to 52,864.80, 79,276.80 and 15,412.32 is: 23,112.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,864.80 : 79,276.80 = 15,412.32 : x
  2. Step 2: Convert to fraction form
    52,864.80/79,276.80 = 15,412.32/x
  3. Step 3: Cross multiply
    52,864.80x = 79,276.80 × 15,412.32
  4. Step 4: Simplify right side
    52,864.80x = 1,221,839,410.18
  5. Step 5: Solve for x
    x = 1,221,839,410.18/52,864.80
  6. Step 6: Final answer
    x = 23,112.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.