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Finding the Fourth Proportional to 18,002.63, 26,995.32 and 8,507.05

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Solution

The fourth proportional to 18,002.63, 26,995.32 and 8,507.05 is: 12,756.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,002.63 : 26,995.32 = 8,507.05 : x
  2. Step 2: Convert to fraction form
    18,002.63/26,995.32 = 8,507.05/x
  3. Step 3: Cross multiply
    18,002.63x = 26,995.32 × 8,507.05
  4. Step 4: Simplify right side
    18,002.63x = 229,650,437.08
  5. Step 5: Solve for x
    x = 229,650,437.08/18,002.63
  6. Step 6: Final answer
    x = 12,756.49

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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.