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Finding the Fourth Proportional to 26,797.42, 40,218 and 13,653.55

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Solution

The fourth proportional to 26,797.42, 40,218 and 13,653.55 is: 20,491.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,797.42 : 40,218 = 13,653.55 : x
  2. Step 2: Convert to fraction form
    26,797.42/40,218 = 13,653.55/x
  3. Step 3: Cross multiply
    26,797.42x = 40,218 × 13,653.55
  4. Step 4: Simplify right side
    26,797.42x = 549,118,473.90
  5. Step 5: Solve for x
    x = 549,118,473.90/26,797.42
  6. Step 6: Final answer
    x = 20,491.47

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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.