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Finding the Fourth Proportional to 14,483.64, 21,725.78 and 12,307.64

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Solution

The fourth proportional to 14,483.64, 21,725.78 and 12,307.64 is: 18,461.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,483.64 : 21,725.78 = 12,307.64 : x
  2. Step 2: Convert to fraction form
    14,483.64/21,725.78 = 12,307.64/x
  3. Step 3: Cross multiply
    14,483.64x = 21,725.78 × 12,307.64
  4. Step 4: Simplify right side
    14,483.64x = 267,393,078.96
  5. Step 5: Solve for x
    x = 267,393,078.96/14,483.64
  6. Step 6: Final answer
    x = 18,461.73

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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.