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Finding the Fourth Proportional to 52,752.80, 79,131.76 and 17,214.06

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Solution

The fourth proportional to 52,752.80, 79,131.76 and 17,214.06 is: 25,821.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,752.80 : 79,131.76 = 17,214.06 : x
  2. Step 2: Convert to fraction form
    52,752.80/79,131.76 = 17,214.06/x
  3. Step 3: Cross multiply
    52,752.80x = 79,131.76 × 17,214.06
  4. Step 4: Simplify right side
    52,752.80x = 1,362,178,864.55
  5. Step 5: Solve for x
    x = 1,362,178,864.55/52,752.80
  6. Step 6: Final answer
    x = 25,821.93

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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.