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Finding the Fourth Proportional to 14,034.61, 21,067.08 and 12,484.54

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Solution

The fourth proportional to 14,034.61, 21,067.08 and 12,484.54 is: 18,740.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,034.61 : 21,067.08 = 12,484.54 : x
  2. Step 2: Convert to fraction form
    14,034.61/21,067.08 = 12,484.54/x
  3. Step 3: Cross multiply
    14,034.61x = 21,067.08 × 12,484.54
  4. Step 4: Simplify right side
    14,034.61x = 263,012,802.94
  5. Step 5: Solve for x
    x = 263,012,802.94/14,034.61
  6. Step 6: Final answer
    x = 18,740.30

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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.