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Finding the Fourth Proportional to 14,615.84, 21,926.64 and 5,381.92

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Solution

The fourth proportional to 14,615.84, 21,926.64 and 5,381.92 is: 8,073.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,615.84 : 21,926.64 = 5,381.92 : x
  2. Step 2: Convert to fraction form
    14,615.84/21,926.64 = 5,381.92/x
  3. Step 3: Cross multiply
    14,615.84x = 21,926.64 × 5,381.92
  4. Step 4: Simplify right side
    14,615.84x = 118,007,422.35
  5. Step 5: Solve for x
    x = 118,007,422.35/14,615.84
  6. Step 6: Final answer
    x = 8,073.94

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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.