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Finding the Fourth Proportional to 52,742.18, 79,103.18 and 15,806.18

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Solution

The fourth proportional to 52,742.18, 79,103.18 and 15,806.18 is: 23,706.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,742.18 : 79,103.18 = 15,806.18 : x
  2. Step 2: Convert to fraction form
    52,742.18/79,103.18 = 15,806.18/x
  3. Step 3: Cross multiply
    52,742.18x = 79,103.18 × 15,806.18
  4. Step 4: Simplify right side
    52,742.18x = 1,250,319,101.65
  5. Step 5: Solve for x
    x = 1,250,319,101.65/52,742.18
  6. Step 6: Final answer
    x = 23,706.25

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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.