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Finding the Fourth Proportional to 13,507.63, 20,264.68 and 4,273.63

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Solution

The fourth proportional to 13,507.63, 20,264.68 and 4,273.63 is: 6,411.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,507.63 : 20,264.68 = 4,273.63 : x
  2. Step 2: Convert to fraction form
    13,507.63/20,264.68 = 4,273.63/x
  3. Step 3: Cross multiply
    13,507.63x = 20,264.68 × 4,273.63
  4. Step 4: Simplify right side
    13,507.63x = 86,603,744.39
  5. Step 5: Solve for x
    x = 86,603,744.39/13,507.63
  6. Step 6: Final answer
    x = 6,411.47

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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.