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Finding the Fourth Proportional to 13,700.52, 20,551.97 and 4,815.09

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Solution

The fourth proportional to 13,700.52, 20,551.97 and 4,815.09 is: 7,223.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,700.52 : 20,551.97 = 4,815.09 : x
  2. Step 2: Convert to fraction form
    13,700.52/20,551.97 = 4,815.09/x
  3. Step 3: Cross multiply
    13,700.52x = 20,551.97 × 4,815.09
  4. Step 4: Simplify right side
    13,700.52x = 98,959,585.23
  5. Step 5: Solve for x
    x = 98,959,585.23/13,700.52
  6. Step 6: Final answer
    x = 7,223.05

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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.