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Finding the Fourth Proportional to 12,886.32, 17,763.96 and 9,097.08

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Solution

The fourth proportional to 12,886.32, 17,763.96 and 9,097.08 is: 12,540.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,886.32 : 17,763.96 = 9,097.08 : x
  2. Step 2: Convert to fraction form
    12,886.32/17,763.96 = 9,097.08/x
  3. Step 3: Cross multiply
    12,886.32x = 17,763.96 × 9,097.08
  4. Step 4: Simplify right side
    12,886.32x = 161,600,165.24
  5. Step 5: Solve for x
    x = 161,600,165.24/12,886.32
  6. Step 6: Final answer
    x = 12,540.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.