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Finding the Fourth Proportional to 12,366.21, 17,065.98 and 6,916.03

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Solution

The fourth proportional to 12,366.21, 17,065.98 and 6,916.03 is: 9,544.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,366.21 : 17,065.98 = 6,916.03 : x
  2. Step 2: Convert to fraction form
    12,366.21/17,065.98 = 6,916.03/x
  3. Step 3: Cross multiply
    12,366.21x = 17,065.98 × 6,916.03
  4. Step 4: Simplify right side
    12,366.21x = 118,028,786.99
  5. Step 5: Solve for x
    x = 118,028,786.99/12,366.21
  6. Step 6: Final answer
    x = 9,544.46

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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.