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Finding the Fourth Proportional to 12,351.95, 18,528.52 and 4,031.95

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Solution

The fourth proportional to 12,351.95, 18,528.52 and 4,031.95 is: 6,048.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,351.95 : 18,528.52 = 4,031.95 : x
  2. Step 2: Convert to fraction form
    12,351.95/18,528.52 = 4,031.95/x
  3. Step 3: Cross multiply
    12,351.95x = 18,528.52 × 4,031.95
  4. Step 4: Simplify right side
    12,351.95x = 74,706,066.21
  5. Step 5: Solve for x
    x = 74,706,066.21/12,351.95
  6. Step 6: Final answer
    x = 6,048.12

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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.