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Finding the Fourth Proportional to 14,656.85, 21,986.74 and 4,126.85

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Solution

The fourth proportional to 14,656.85, 21,986.74 and 4,126.85 is: 6,190.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,656.85 : 21,986.74 = 4,126.85 : x
  2. Step 2: Convert to fraction form
    14,656.85/21,986.74 = 4,126.85/x
  3. Step 3: Cross multiply
    14,656.85x = 21,986.74 × 4,126.85
  4. Step 4: Simplify right side
    14,656.85x = 90,735,955.64
  5. Step 5: Solve for x
    x = 90,735,955.64/14,656.85
  6. Step 6: Final answer
    x = 6,190.69

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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.