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Finding the Fourth Proportional to 14,452.71, 21,696.35 and 8,612.07

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Solution

The fourth proportional to 14,452.71, 21,696.35 and 8,612.07 is: 12,928.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,452.71 : 21,696.35 = 8,612.07 : x
  2. Step 2: Convert to fraction form
    14,452.71/21,696.35 = 8,612.07/x
  3. Step 3: Cross multiply
    14,452.71x = 21,696.35 × 8,612.07
  4. Step 4: Simplify right side
    14,452.71x = 186,850,441.88
  5. Step 5: Solve for x
    x = 186,850,441.88/14,452.71
  6. Step 6: Final answer
    x = 12,928.40

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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.