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Finding the Fourth Proportional to 12,460.46, 18,689.46 and 5,065.36

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Solution

The fourth proportional to 12,460.46, 18,689.46 and 5,065.36 is: 7,597.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,460.46 : 18,689.46 = 5,065.36 : x
  2. Step 2: Convert to fraction form
    12,460.46/18,689.46 = 5,065.36/x
  3. Step 3: Cross multiply
    12,460.46x = 18,689.46 × 5,065.36
  4. Step 4: Simplify right side
    12,460.46x = 94,668,843.11
  5. Step 5: Solve for x
    x = 94,668,843.11/12,460.46
  6. Step 6: Final answer
    x = 7,597.54

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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.