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Finding the Fourth Proportional to 12,507.44, 18,748.74 and 6,963.32

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Solution

The fourth proportional to 12,507.44, 18,748.74 and 6,963.32 is: 10,438.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,507.44 : 18,748.74 = 6,963.32 : x
  2. Step 2: Convert to fraction form
    12,507.44/18,748.74 = 6,963.32/x
  3. Step 3: Cross multiply
    12,507.44x = 18,748.74 × 6,963.32
  4. Step 4: Simplify right side
    12,507.44x = 130,553,476.22
  5. Step 5: Solve for x
    x = 130,553,476.22/12,507.44
  6. Step 6: Final answer
    x = 10,438.07

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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.