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Finding the Fourth Proportional to 14,476.51, 21,717.95 and 8,239.46

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Solution

The fourth proportional to 14,476.51, 21,717.95 and 8,239.46 is: 12,361.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,476.51 : 21,717.95 = 8,239.46 : x
  2. Step 2: Convert to fraction form
    14,476.51/21,717.95 = 8,239.46/x
  3. Step 3: Cross multiply
    14,476.51x = 21,717.95 × 8,239.46
  4. Step 4: Simplify right side
    14,476.51x = 178,944,146.61
  5. Step 5: Solve for x
    x = 178,944,146.61/14,476.51
  6. Step 6: Final answer
    x = 12,361.00

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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.