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Finding the Fourth Proportional to 14,404.17, 21,619.74 and 8,868.32

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Solution

The fourth proportional to 14,404.17, 21,619.74 and 8,868.32 is: 13,310.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,404.17 : 21,619.74 = 8,868.32 : x
  2. Step 2: Convert to fraction form
    14,404.17/21,619.74 = 8,868.32/x
  3. Step 3: Cross multiply
    14,404.17x = 21,619.74 × 8,868.32
  4. Step 4: Simplify right side
    14,404.17x = 191,730,772.64
  5. Step 5: Solve for x
    x = 191,730,772.64/14,404.17
  6. Step 6: Final answer
    x = 13,310.78

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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.