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Finding the Fourth Proportional to 14,396.14, 19,859.08 and 9,912.10

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Solution

The fourth proportional to 14,396.14, 19,859.08 and 9,912.10 is: 13,673.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,396.14 : 19,859.08 = 9,912.10 : x
  2. Step 2: Convert to fraction form
    14,396.14/19,859.08 = 9,912.10/x
  3. Step 3: Cross multiply
    14,396.14x = 19,859.08 × 9,912.10
  4. Step 4: Simplify right side
    14,396.14x = 196,845,196.24
  5. Step 5: Solve for x
    x = 196,845,196.24/14,396.14
  6. Step 6: Final answer
    x = 13,673.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.