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Finding the Fourth Proportional to 14,043.96, 21,065.94 and 4,182.98

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Solution

The fourth proportional to 14,043.96, 21,065.94 and 4,182.98 is: 6,274.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,043.96 : 21,065.94 = 4,182.98 : x
  2. Step 2: Convert to fraction form
    14,043.96/21,065.94 = 4,182.98/x
  3. Step 3: Cross multiply
    14,043.96x = 21,065.94 × 4,182.98
  4. Step 4: Simplify right side
    14,043.96x = 88,118,371.60
  5. Step 5: Solve for x
    x = 88,118,371.60/14,043.96
  6. Step 6: Final answer
    x = 6,274.47

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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.