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Finding the Fourth Proportional to 14,980.98, 20,673.18 and 8,603.22

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Solution

The fourth proportional to 14,980.98, 20,673.18 and 8,603.22 is: 11,872.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,980.98 : 20,673.18 = 8,603.22 : x
  2. Step 2: Convert to fraction form
    14,980.98/20,673.18 = 8,603.22/x
  3. Step 3: Cross multiply
    14,980.98x = 20,673.18 × 8,603.22
  4. Step 4: Simplify right side
    14,980.98x = 177,855,915.64
  5. Step 5: Solve for x
    x = 177,855,915.64/14,980.98
  6. Step 6: Final answer
    x = 11,872.11

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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.