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Finding the Fourth Proportional to 14,010.69, 20,913.49 and 12,349.99

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Solution

The fourth proportional to 14,010.69, 20,913.49 and 12,349.99 is: 18,434.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,010.69 : 20,913.49 = 12,349.99 : x
  2. Step 2: Convert to fraction form
    14,010.69/20,913.49 = 12,349.99/x
  3. Step 3: Cross multiply
    14,010.69x = 20,913.49 × 12,349.99
  4. Step 4: Simplify right side
    14,010.69x = 258,281,392.37
  5. Step 5: Solve for x
    x = 258,281,392.37/14,010.69
  6. Step 6: Final answer
    x = 18,434.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.