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Finding the Fourth Proportional to 52,753.68, 79,146.72 and 17,690.40

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Solution

The fourth proportional to 52,753.68, 79,146.72 and 17,690.40 is: 26,541.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,753.68 : 79,146.72 = 17,690.40 : x
  2. Step 2: Convert to fraction form
    52,753.68/79,146.72 = 17,690.40/x
  3. Step 3: Cross multiply
    52,753.68x = 79,146.72 × 17,690.40
  4. Step 4: Simplify right side
    52,753.68x = 1,400,137,135.49
  5. Step 5: Solve for x
    x = 1,400,137,135.49/52,753.68
  6. Step 6: Final answer
    x = 26,541.03

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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.