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Finding the Fourth Proportional to 12,465.63, 18,711.12 and 6,230.12

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Solution

The fourth proportional to 12,465.63, 18,711.12 and 6,230.12 is: 9,351.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,465.63 : 18,711.12 = 6,230.12 : x
  2. Step 2: Convert to fraction form
    12,465.63/18,711.12 = 6,230.12/x
  3. Step 3: Cross multiply
    12,465.63x = 18,711.12 × 6,230.12
  4. Step 4: Simplify right side
    12,465.63x = 116,572,429.38
  5. Step 5: Solve for x
    x = 116,572,429.38/12,465.63
  6. Step 6: Final answer
    x = 9,351.51

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1.5x scale

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.